Added new read me files

Author: Marismathan

packages/syncfusion_flutter_barcodes/syncfusion_flutter_barcodes.iml

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+Syncfusion License
+
+Syncfusion Flutter Calendar package is available under the Syncfusion Essential Studio program, and can be licensed either under the Syncfusion Community License Program or the Syncfusion commercial license.
+
+To be qualified for the Syncfusion Community License Program you must have a gross revenue of less than one (1) million U.S. dollars ($1,000,000.00 USD) per year and have less than five (5) developers in your organization, and agree to be bound by Syncfusion’s terms and conditions. 
+
+Customers who do not qualify for the community license can contact [email protected] for commercial licensing options.
+
+Under no circumstances can you use this product without (1) either a Community License or a commercial license and (2) without agreeing and abiding by Syncfusion’s license containing all terms and conditions. 
+
+The Syncfusion license that contains the terms and conditions can be found at 
+https://www.syncfusion.com/content/downloads/syncfusion_license.pdf

packages/syncfusion_flutter_calendar/LICENSE

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+Syncfusion License
+
+Syncfusion Flutter Chart package is available under the Syncfusion Essential Studio program, and can be licensed either under the Syncfusion Community License Program or the Syncfusion commercial license.
+
+To be qualified for the Syncfusion Community License Program you must have a gross revenue of less than one (1) million U.S. dollars ($1,000,000.00 USD) per year and have less than five (5) developers in your organization, and agree to be bound by Syncfusion’s terms and conditions. 
+
+Customers who do not qualify for the community license can contact [email protected] for commercial licensing options.
+
+Under no circumstances can you use this product without (1) either a Community License or a commercial license and (2) without agreeing and abiding by Syncfusion’s license containing all terms and conditions. 
+
+The Syncfusion license that contains the terms and conditions can be found at 
+https://www.syncfusion.com/content/downloads/syncfusion_license.pdf

packages/syncfusion_flutter_calendar/README.md

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+Syncfusion License
+
+Syncfusion Flutter Core package is available under the Syncfusion Essential Studio program, and can be licensed either under the Syncfusion Community License Program or the Syncfusion commercial license.
+
+To be qualified for the Syncfusion Community License Program you must have a gross revenue of less than one (1) million U.S. dollars ($1,000,000.00 USD) per year and have less than five (5) developers in your organization, and agree to be bound by Syncfusion’s terms and conditions. 
+
+Customers who do not qualify for the community license can contact [email protected] for commercial licensing options.
+
+Under no circumstances can you use this product without (1) either a Community License or a commercial license and (2) without agreeing and abiding by Syncfusion’s license containing all terms and conditions. 
+
+The Syncfusion license that contains the terms and conditions can be found at 
+https://www.syncfusion.com/content/downloads/syncfusion_license.pdf

packages/syncfusion_flutter_charts/LICENSE

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+# Syncfusion Flutter Core
+
+Syncfusion Flutter Core is a dependent package for the following Syncfusion Flutter widgets.
+
+* [syncfusion_flutter_charts](https://pub.dev/packages/syncfusion_flutter_charts)
+* [syncfusion_flutter_calendar](https://pub.dev/packages/syncfusion_flutter_calendar)
+* [syncfusion_flutter_datagrid](https://pub.dev/packages/syncfusion_flutter_datagrid)
+* [syncfusion_flutter_pdfviewer](https://pub.dev/packages/syncfusion_flutter_pdfviewer)
+* [syncfusion_flutter_pdf](https://pub.dev/packages/syncfusion_flutter_pdf)
+* [syncfusion_flutter_xlsio](https://pub.dev/packages/syncfusion_flutter_xlsio)
+* [syncfusion_flutter_datepicker](https://pub.dev/packages/syncfusion_flutter_datepicker)
+* [syncfusion_flutter_maps](https://pub.dev/packages/syncfusion_flutter_maps)
+* [syncfusion_flutter_treemap](https://pub.dev/packages/syncfusion_flutter_treemap)
+* [syncfusion_flutter_gauges](https://pub.dev/packages/syncfusion_flutter_gauges)
+* [syncfusion_flutter_sliders](https://pub.dev/packages/syncfusion_flutter_sliders)
+* [syncfusion_flutter_signaturepad](https://pub.dev/packages/syncfusion_flutter_signaturepad)
+* [syncfusion_flutter_barcodes](https://pub.dev/packages/syncfusion_flutter_barcodes)
+* [syncfusion_officechart](https://pub.dev/packages/syncfusion_officechart)
+* [syncfusion_officecore](https://pub.dev/packages/syncfusion_officecore)
+* [syncfusion_localizations](https://pub.dev/packages/syncfusion_localizations)
+
+**Disclaimer:** This is a commercial package. To use this package, you need to have either Syncfusion Commercial License or [Free Syncfusion Community license](https://www.syncfusion.com/products/communitylicense). For more details, please check the [LICENSE](https://github.com/syncfusion/flutter-examples/blob/master/LICENSE) file.
+
+## Table of contents
+- [Get the demo application](#get-the-demo-application)
+- [Other useful links](#other-useful-links)
+- [Support and Feedback](#support-and-feedback)
+- [About Syncfusion](#about-syncfusion)
+
+## Get the Demo application
+
+Explore the full capabilities of our Flutter widgets on your device by installing our sample browser applications from the below app stores, and view samples code in GitHub.
+
+<p align="center">
+  <a href="https://play.google.com/store/apps/details?id=com.syncfusion.flutter.examples"><img src="https://cdn.syncfusion.com/content/images/FTControl/google-play-store.png"/></a>
+  <a href="https://apps.apple.com/us/app/syncfusion-flutter-ui-widgets/id1475231341"><img src="https://cdn.syncfusion.com/content/images/FTControl/ios-store.png"/></a>
+  <a href="https://flutter.syncfusion.com"><img src="https://cdn.syncfusion.com/content/images/FTControl/web-sample-browser.png"/></a> 
+</p>
+<p align="center">
+  <a href="https://www.microsoft.com/en-us/p/syncfusion-flutter-gallery/9nhnbwcsf85d?activetab=pivot:overviewtab"><img src="https://cdn.syncfusion.com/content/images/FTControl/windows-store.png"/></a> 
+  <a href="https://install.appcenter.ms/orgs/syncfusion-demos/apps/syncfusion-flutter-gallery/distribution_groups/release"><img src="https://cdn.syncfusion.com/content/images/FTControl/macos-app-center.png"/></a>
+  <a href="https://snapcraft.io/syncfusion-flutter-gallery"><img src="https://cdn.syncfusion.com/content/images/FTControl/snap-store.png"/></a>
+</p>
+<p align="center">
+  <a href="https://github.com/syncfusion/flutter-examples"><img src="https://cdn.syncfusion.com/content/images/FTControl/github-samples.png"/></a>
+</p>
+ 
+## Other useful links
+Take a look at the following to learn more about Syncfusion Flutter widgets:
+
+* [Syncfusion Flutter product page](https://www.syncfusion.com/flutter-widgets)
+* [User guide documentation](https://help.syncfusion.com/flutter/introduction/overview)
+* [Video tutorials](https://www.syncfusion.com/tutorial-videos/flutter)
+* [Knowledge base](https://www.syncfusion.com/kb)
+
+## Support and Feedback
+
+* For any other queries, reach our [Syncfusion support team](https://www.syncfusion.com/support/directtrac/incidents/newincident) or post the queries through the [Community forums](https://www.syncfusion.com/forums) and submit a feature request or a bug through our [Feedback portal](https://www.syncfusion.com/feedback/flutter).
+* To renew the subscription, click [renew](https://www.syncfusion.com/sales/products) or contact our sales team at [email protected] | Toll Free: 1-888-9 DOTNET.
+
+## About Syncfusion
+
+Founded in 2001 and headquartered in Research Triangle Park, N.C., Syncfusion has more than 20,000 customers and more than 1 million users, including large financial institutions, Fortune 500 companies, and global IT consultancies.
+
+Today we provide 1,000+ controls and frameworks for web ([ASP.NET Core](https://www.syncfusion.com/aspnet-core-ui-controls), [ASP.NET MVC](https://www.syncfusion.com/aspnet-mvc-ui-controls), [ASP.NET WebForms](https://www.syncfusion.com/jquery/aspnet-web-forms-ui-controls), [JavaScript](https://www.syncfusion.com/javascript-ui-controls), [Angular](https://www.syncfusion.com/angular-ui-components), [React](https://www.syncfusion.com/react-ui-components), [Vue](https://www.syncfusion.com/vue-ui-components), and [Blazor](https://www.syncfusion.com/blazor-components), mobile ([Xamarin](https://www.syncfusion.com/xamarin-ui-controls), [.NET MAUI](https://www.syncfusion.com/maui-controls), [Flutter](https://www.syncfusion.com/flutter-widgets), [UWP](https://www.syncfusion.com/uwp-ui-controls), and [JavaScript](https://www.syncfusion.com/javascript-ui-controls)), and desktop development ([WinForms](https://www.syncfusion.com/winforms-ui-controls), [WPF](https://www.syncfusion.com/wpf-ui-controls), [UWP](https://www.syncfusion.com/uwp-ui-controls) and [.NET MAUI](https://www.syncfusion.com/maui-controls)). We provide ready-to deploy enterprise software for dashboards, reports, data integration, and big data processing. Many customers have saved millions in licensing fees by deploying our software.

packages/syncfusion_flutter_charts/README.md

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+Syncfusion License
+
+Syncfusion Flutter DataGrid package is available under the Syncfusion Essential Studio program, and can be licensed either under the Syncfusion Community License Program or the Syncfusion commercial license.
+
+To be qualified for the Syncfusion Community License Program you must have a gross revenue of less than one (1) million U.S. dollars ($1,000,000.00 USD) per year and have less than five (5) developers in your organization, and agree to be bound by Syncfusion’s terms and conditions.
+
+Customers who do not qualify for the community license can contact [email protected] for commercial licensing options.
+
+Under no circumstances can you use this product without (1) either a Community License or a commercial license and (2) without agreeing and abiding by Syncfusion’s license containing all terms and conditions.
+
+The Syncfusion license that contains the terms and conditions can be found at
+https://www.syncfusion.com/content/downloads/syncfusion_license.pdf