Add GitHub CI

Author: Klukies

.github/workflows/ci.yml

@@ -0,0 +1,21 @@
+name: CI workflow
+on:
+  push:
+    branches:
+      - master
+  pull_request:
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - name: Use Node.js ${{ matrix.node-version }}
+        uses: actions/setup-node@v1
+        with:
+          node-version: ${{ matrix.node-version }}
+      - name: Install Dependencies
+        run: npm ci --ignore-scripts
+      - name: Run Linting
+        run: npm run lint
+      - name: Run Tests
+        run: npm run test