feat: support custom field via scoped slot

Author: 14nrv

README.md

@@ -1,5 +1,5 @@
 [![NPM Version](https://img.shields.io/npm/v/vue-form-json.svg)](https://www.npmjs.com/package/vue-form-json)
-[![Build Status](https://travis-ci.org/14nrv/vue-form-json.svg?branch=dev)](https://travis-ci.org/14nrv/vue-form-json)
+[![Build Status](https://travis-ci.com/14nrv/vue-form-json.svg?branch=dev)](https://travis-ci.com/14nrv/vue-form-json)
 [![Test Coverage](https://api.codeclimate.com/v1/badges/af5a15db118dac6343ab/test_coverage)](https://codeclimate.com/github/14nrv/vue-form-json/test_coverage)
 [![Maintainability](https://api.codeclimate.com/v1/badges/af5a15db118dac6343ab/maintainability)](https://codeclimate.com/github/14nrv/vue-form-json/maintainability)
 [![semantic-release](https://img.shields.io/badge/%20%20%F0%9F%93%A6%F0%9F%9A%80-semantic--release-e10079.svg)](https://github.com/semantic-release/semantic-release)
@@ -38,11 +38,15 @@ Once submitted, an event 'formSubmitted' is emitted on $root with the formName a
     label: 'the label'
   }]
   ```
-- [x] Scoped slot everywhere inside form
+- [x] Scoped slot everywhere inside the form
   ```js
   const formFields = [{ slot: 'nameOfTheSlot', props: { foo: 'bar' } }]
   ```
-- [x] Html directly inside json (formFields props)
+- [x] Custom fields support inside scoped slot
+  ```html
+  <template #nameOfTheSlot="{ foo, updateFormValues, isFormReseted }">
+  ```
+- [x] Html support
   ```js
   const formFields = [{ html: '<p>Your html content</p>' }]
   ```
@@ -83,6 +87,10 @@ Object.keys(rules).forEach(rule => {
 </template>
 
 <script>
+  // import 'bulma/css/bulma.min.css'
+  // import '@fortawesome/fontawesome-free/css/all.min.css'
+  // import 'vue-form-json/dist/vue-form-json.css'
+
   import formJson from 'vue-form-json'
   import jsonFields from './../assets/fields'
 
@@ -92,19 +100,13 @@ Object.keys(rules).forEach(rule => {
       formJson
     },
     mounted () {
-      this.$root.$on('formSubmitted', values => alert(JSON.stringify(values)))
+      this.$root.$on('formSubmitted', values => console.log(values))
     },
     computed: {
       jsonFields: () => jsonFields
     }
   }
 </script>
-
-<style lang="stylus">
-  @require '../node_modules/bulma/css/bulma.min.css'
-  @require '../node_modules/@fortawesome/fontawesome-free/css/all.min.css'
-  @require '../node_modules/vue-form-json/dist/vue-form-json.css'
-</style>
 ```
 
 ## Props available on formJson component