Added GitHub test PR

.github/workflows/test-docker.yml

@@ -0,0 +1,17 @@
+name: Test Docker
+
+on:
+  pull_request:
+
+jobs:
+  docker:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+      name: Checkout
+     
+    - name: Build and Test
+      run: |
+        docker-compose -f docker-compose.yml -f docker-compose.build.yml up --build -d\
+        while sleep 5; do docker ps -a; if [[ -n "`docker ps | grep webapp | grep ' Up '`" ]]; then break; fi; done
+        docker-compose exec webapp /bin/bash -c "/webodm/webodm.sh test"