Added gh action for test

Author: vsubhuman

.github/workflows/pr-checks.yml

@@ -0,0 +1,33 @@
+name: PR Checks
+
+on:
+  pull_request_review:
+    types: [submitted]
+
+jobs:
+  test:
+    if: github.event.review && (github.event.review.state == 'approved' || contains(github.event.review.body, '/check'))
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/setup-node@v1
+        with:
+          node-version: '12.18.1'
+      - name: Cache node modules
+        uses: actions/cache@v1
+        with:
+          path: ~/.npm # npm cache files are stored in `~/.npm` on Linux/macOS
+          key: ${{ runner.os }}-node-${{ hashFiles('**/package-lock.json') }}
+          restore-keys: |
+            ${{ runner.os }}-build-${{ env.cache-name }}-
+            ${{ runner.os }}-build-
+            ${{ runner.os }}-
+      - name: install
+        run: |
+          npm install
+      - name: rust:test
+        run: |
+          npm run rust:test
+      - name: rust:build-nodejs
+        run: |
+          npm run rust:build-nodejs