Added the GitHub Workflow

Author: OlehDutchenko

.github/workflows/test.yml

@@ -0,0 +1,19 @@
+name: Test and Build
+
+on: [push, pull_request]
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        node-version: [12.x]
+    steps:
+      - uses: actions/checkout@v1
+      - uses: actions/setup-node@v1
+        with:
+          node-version: ${{ matrix.node-version }}
+      - name: Install
+        run: npm install
+      - name: Test
+        run: npm test