Add GitHub Actions workflow to run yarn tooga on push

.github/workflows/tooga.yml

@@ -0,0 +1,17 @@
+name: Run yarn tooga
+
+on: [push]
+
+jobs:
+  build_and_test:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+    - name: Use Node.js
+      uses: actions/setup-node@v2
+      with:
+        node-version: '14'
+    - name: Install dependencies
+      run: yarn install
+    - name: Run yarn tooga
+      run: yarn tooga