Create ci.yml

Add automatic testing infrastructure

.github/workflows/ci.yml

@@ -0,0 +1,28 @@
+name: Continous Integration
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+jobs:
+  test:
+    runs-on: ubuntu-20.04
+    steps:  
+    - uses: actions/checkout@v1
+
+    - name: Install Flutter
+      uses: subosito/flutter-action@v1
+      with:
+        flutter-version: '1.22.2'
+
+    - name: Install app dependencies
+      run: flutter pub get
+
+    - name: Test app
+      run: flutter test --coverage
+    
+    #- name: Upload coverage to Codecov
+    #  uses: codecov/codecov-action@v1
+    #  with:
+    #    token: ${{ secrets.CODECOV_TOKEN }}
+    #    file: coverage/lcov.info