Update issue templates

Author: bgavrilMS

.github/ISSUE_TEMPLATE/bug_report.md

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+---
+name: Bug report
+about: Create a report to help us improve
+title: ''
+labels: untriaged
+assignees: ''
+
+---
+
+**Which version of Microsoft.Identity.Client are you using?**
+
+Note that to get help, you need to run the latest version.
+
+**Repro**
+
+```js
+// code
+```
+
+**Expected behavior**
+A clear and concise description of what you expected to happen (or code).
+
+**Actual behavior**
+A clear and concise description of what happens, e.g. an exception is thrown, UI freezes.
+
+**Possible solution**
+<!-- Only if you have suggestions on a fix for the bug. -->
+
+**Additional context / logs / screenshots / links to code**
+<!-- Please do not include any customer data or Personal Identifiable Information (PII) in any content posted to GitHub. See https://docs.microsoft.com/compliance/regulatory/gdpr#gdpr-faqs for more info on PII.-->
+Add any other context about the problem here, such as logs and screenshots or links to code.

.github/ISSUE_TEMPLATE/feature_request.md

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+---
+name: Feature request
+about: Suggest an idea for this project
+title: ''
+labels: enhancement
+assignees: ''
+
+---
+
+**Is your feature request related to a problem? Please describe.**
+A clear and concise description of what the problem is. Ex. I'm always frustrated when [...]
+
+**Describe the solution you'd like**
+A clear and concise description of what you want to happen.
+
+**Describe alternatives you've considered**
+A clear and concise description of any alternative solutions or features you've considered.
+
+**Additional context**
+Add any other context or screenshots about the feature request here.