Add "Basic tests" github action

.github/workflows/basic-tests.yml

@@ -0,0 +1,25 @@
+name: Basic tests # Basically check that it can be run
+
+on:
+  pull_request:
+    types: [ opened, reopened ]
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v3
+    - name: Set up JDK 17
+      uses: actions/setup-java@v3
+      with:
+        java-version: '17'
+        distribution: 'temurin'
+    - name: Set up android SDK
+      uses: android-actions/setup-android@v2
+    - name: Setup Gradle
+      uses: gradle/gradle-build-action@v2
+      with:
+        gradle-version: wrapper
+    - name: Run tests
+      run: ./gradlew testDebugUnitTest
+    - name: Build snapshot
+      run: ./gradlew assembleDebug