ci: add github checks

+version: 2
+updates:
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "weekly"
+    reviewers:
+      - "juliansteenbakker"
+  - package-ecosystem: gradle
+    directory: "/android"
+    schedule:
+      interval: "weekly"
+    reviewers:
+      - "juliansteenbakker"
+  - package-ecosystem: gradle
+    directory: "/example/android"
+    schedule:
+      interval: "weekly"
+    reviewers:
+      - "juliansteenbakker"

+github: [juliansteenbakker]

+name: code analysis & formatting
+
+on: [push, pull_request]
+
+jobs:
+  analysis:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/setup-java@v2
+        with:
+          distribution: 'temurin'
+          java-version: '11'
+      - uses: subosito/flutter-action@v1
+      - name: Version
+        run: flutter doctor -v
+      - name: Install dependencies
+        run: flutter pub get
+      - name: Linter
+        run: flutter analyze
+  formatting:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/setup-java@v2
+        with:
+          distribution: 'temurin'
+          java-version: '11'
+      - uses: subosito/flutter-action@v1
+      - name: Format
+        run: flutter format -n --set-exit-if-changed .

 name: mobile_scanner_example
 name: mobile_scanner_example
 description: Demonstrates how to use the mobile_scanner plugin.
 description: Demonstrates how to use the mobile_scanner plugin.
-
-# The following line prevents the package from being accidentally published to
-# pub.dev using `flutter pub publish`. This is preferred for private packages.
 publish_to: 'none' # Remove this line if you wish to publish to pub.dev
 publish_to: 'none' # Remove this line if you wish to publish to pub.dev
 
 
 environment:
 environment:
   sdk: ">=2.16.0 <3.0.0"
   sdk: ">=2.16.0 <3.0.0"
 
 
-# Dependencies specify other packages that your package needs in order to work.
-# To automatically upgrade your package dependencies to the latest versions
-# consider running `flutter pub upgrade --major-versions`. Alternatively,
-# dependencies can be manually updated by changing the version numbers below to
-# the latest version available on pub.dev. To see which dependencies have newer
-# versions available, run `flutter pub outdated`.
 dependencies:
 dependencies:
   flutter:
   flutter:
     sdk: flutter
     sdk: flutter
 
 
   mobile_scanner:
   mobile_scanner:
-    # When depending on this package from a real application you should use:
-    #   mobile_scanner: ^x.y.z
-    # See https://dart.dev/tools/pub/dependencies#version-constraints
-    # The example app is bundled with the plugin so we use a path dependency on
-    # the parent directory to use the current plugin's version.
     path: ../
     path: ../
 
 
-  # The following adds the Cupertino Icons font to your application.
-  # Use with the CupertinoIcons class for iOS style icons.
-  cupertino_icons: ^1.0.2
-
 dev_dependencies:
 dev_dependencies:
   flutter_test:
   flutter_test:
     sdk: flutter
     sdk: flutter
+  flutter_lints: ^1.0.4
 
 
-  # The "flutter_lints" package below contains a set of recommended lints to
-  # encourage good coding practices. The lint set provided by the package is
-  # activated in the `analysis_options.yaml` file located at the root of your
-  # package. See that file for information about deactivating specific lint
-  # rules and activating additional ones.
-  flutter_lints: ^1.0.0
-
-# For information on the generic Dart part of this file, see the
-# following page: https://dart.dev/tools/pub/pubspec
-
-# The following section is specific to Flutter.
 flutter:
 flutter:
-
-  # The following line ensures that the Material Icons font is
-  # included with your application, so that you can use the icons in
-  # the material Icons class.
   uses-material-design: true
   uses-material-design: true
-
-  # To add assets to your application, add an assets section, like this:
-  # assets:
-  #   - images/a_dot_burr.jpeg
-  #   - images/a_dot_ham.jpeg
-
-  # An image asset can refer to one or more resolution-specific "variants", see
-  # https://flutter.dev/assets-and-images/#resolution-aware.
-
-  # For details regarding adding assets from package dependencies, see
-  # https://flutter.dev/assets-and-images/#from-packages
-
-  # To add custom fonts to your application, add a fonts section here,
-  # in this "flutter" section. Each entry in this list should have a
-  # "family" key with the font family name, and a "fonts" key with a
-  # list giving the asset and other descriptors for the font. For
-  # example:
-  # fonts:
-  #   - family: Schyler
-  #     fonts:
-  #       - asset: fonts/Schyler-Regular.ttf
-  #       - asset: fonts/Schyler-Italic.ttf
-  #         style: italic
-  #   - family: Trajan Pro
-  #     fonts:
-  #       - asset: fonts/TrajanPro.ttf
-  #       - asset: fonts/TrajanPro_Bold.ttf
-  #         weight: 700
-  #
-  # For details regarding fonts from package dependencies,
-  # see https://flutter.dev/custom-fonts/#from-packages