Add route to display version information. (#195)

* Add version information route.

* Use build action for tests.

* Add version test to script.

* Add testing directory to dockerignore.

* Don't unnecessarily set permission for gradle wrapper script.

.github/workflows/docker-build-test.yml

@@ -18,10 +18,14 @@ jobs:
           - testing/docker-compose.yugabytedb.yml
     steps:
       - uses: actions/checkout@v2.4.0
-        with:
-          fetch-depth: 0
+      - name: Create Version File
+        run: echo $(git log -1 --date=short --pretty=format:%cd)-$(git rev-parse --short HEAD) > VERSION
       - name: Build Locally
-        run: docker build . -t 1337kavin/piped:latest
+        uses: docker/build-push-action@v2.9.0
+        with:
+          context: .
+          load: true
+          tags: 1337kavin/piped:latest
       - name: Start Docker-Compose services
         run: docker-compose -f ${{ matrix.docker-compose-file }} up -d && sleep 5
       - name: Run tests