basic github ci with debug builds

.github/workflows/main.yml

@@ -0,0 +1,35 @@
+name: Android CI
+
+on:
+  pull_request:
+    branches-ignore:
+      - ''
+  push:
+    branches-ignore:
+      - ''
+  workflow_dispatch:
+
+jobs:
+  build:
+    runs-on: ubuntu-20.04
+    steps:
+    - uses: actions/checkout@v2
+      with:
+        fetch-depth: 0
+
+    - name: set up JDK 17
+      uses: actions/setup-java@v1
+      with:
+        java-version: 17
+
+    - name: Build debug .apk
+      run: |
+        chmod +x gradlew
+        ./gradlew assembleDebug
+        
+    - name : upload apk
+      uses: actions/upload-artifact@v3
+      with:
+        name: app-release
+        path: FCL/build/outputs/apk/debug/*
+      #  retention-days: 1