Initial attempt for e2e tests

- Add node code for e2e tests. This is a first take to try running
  these tests via actions.
- Relates to #401

.github/workflows/e2e.yml

@@ -0,0 +1,51 @@
+name: e2e
+
+on:
+  workflow_dispatch:
+
+jobs:
+  e2e:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - nickname: win
+            os: windows-2019
+            graal: 22.0.0.2
+          - nickname: macos
+            os: macos-latest
+            graal: 22.0.0.2
+          - nickname: linux
+            os: ubuntu-latest
+            graal: 22.0.0.2
+    name: CI Native ${{ matrix.nickname }}
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/setup-java@v2
+        with:
+          distribution: adopt
+          java-version: 11
+          cache: maven
+      - uses: graalvm/setup-graalvm@v1
+        with:
+          version: ${{ matrix.graal }}
+          java-version: 11
+          components: native-image
+          set-java-home: false
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+      - uses: actions/setup-node@v2
+        with:
+          node-version: '14'
+      - run: |
+          ./mvnw clean package -Pnative
+      - name: compile e2e module
+        working-directory: e2e/spring-shell-e2e
+        run: |
+          npm install
+          npm run build
+      - name: run e2e tests
+        working-directory: e2e/spring-shell-e2e-tests
+        run: |
+          npm install
+          npm test