[github] Add lint check workflow

.github/workflows/lint.yml

@@ -0,0 +1,36 @@
+name: Lint check
+
+on: [push, pull_request]
+
+jobs:
+  lint-clang-format:
+    name: Lint with clang-format
+    runs-on: ubuntu-latest
+    if: ${{ false }}  # disable for now
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+      - name: Check code with clang-format
+        uses: jidicula/clang-format-action@v4.5.0
+        with:
+          clang-format-version: "14"
+  lint-black:
+    name: Lint with black
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+      - name: Set up Python
+        uses: actions/setup-python@v2
+        with:
+          python-version: "3.9"
+      - name: Install test dependencies
+        uses: BSFishy/pip-action@v1
+        with:
+          packages: |
+            black
+            isort
+      - name: Check code with black
+        run: black --check .
+      - name: Check code with isort
+        run: isort --profile black . --check-only