[Build] Add Github workflows (#9517)

As an replacement to Travis CI.

.github/workflows/license-check.yml

@@ -0,0 +1,22 @@
+name: License
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+
+jobs:
+  check:
+    runs-on: ubuntu-18.04
+    steps:
+    - uses: actions/checkout@v2
+    - name: Setup Java
+      uses: actions/setup-java@v1
+      with:
+        java-version: 8
+    - name: Generate fossa report
+      env:
+        FOSSA_API_KEY: ${{ secrets.FOSSA_API_KEY }}
+      run: ./scripts/fossa.sh
+    - name: Run license check
+      run: ./scripts/check_license.sh