added github CI actions

.github/workflows/flutter-ci.yml

@@ -0,0 +1,49 @@
+name: Flutter CI
+
+on:
+  push:
+    branches: [master, development]
+  pull_request:
+    branches: [master, development]
+
+jobs:
+  test:
+    strategy:
+      matrix:
+        platform: [windows-latest]
+    runs-on: ${{matrix.platform}}
+    steps:
+      - uses: actions/checkout@v1
+      - uses: actions/setup-java@v1
+        with:
+          java-version: "12.x"
+      - uses: subosito/flutter-action@v1
+        with:
+          flutter-version: '2.5.0'
+      - run: flutter pub get
+      - run: flutter format --set-exit-if-changed .
+      - run: flutter analyze .
+      - run: flutter test
+
+  build:
+    strategy:
+      matrix:
+        platform: [windows-latest]
+    runs-on: ${{matrix.platform}}
+    steps:
+      - uses: actions/checkout@v1
+      - uses: actions/setup-java@v1
+        with:
+          java-version: "12.x"
+      - uses: subosito/flutter-action@v1
+        with:
+          flutter-version: '2.5.0'
+      - run: flutter pub get
+      - run: flutter format --set-exit-if-changed .
+      - run: flutter analyze .
+      - run: flutter test
+      - run: flutter build apk
+      - uses: actions/upload-artifact@v1
+        with:
+          name: release-apk
+          path: build/app/outputs/apk/release/app-release.apk