Fixes #1 - Add github actions

.github/workflows/js_tests.yml

@@ -0,0 +1,35 @@
+name: JavaScript Testing
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+    paths:
+      - 'webpack/**'
+      - 'package.json'
+      - '.github/workflows/js_tests.yml'
+jobs:
+  test_js:
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        node-version: [12]
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/checkout@v2
+        with:
+          repository: theforeman/foreman
+          ref: 3.8-stable
+          path: foreman
+      - name: Setup Node
+        uses: actions/setup-node@v1
+        with:
+          node-version: ${{ matrix.node-version }}
+      - name: Npm install
+        run: npm install
+      - name: Npm install for core
+        run: npm install
+        working-directory: ./foreman
+      - name: Run plugin linter
+        run: npm run lint