Add clang-tidy action

.github/workflows/lint.yml

@@ -0,0 +1,19 @@
+name: Linting
+on:
+    pull_request:
+jobs:
+    lint:
+        name: Lint
+        runs-on: ubuntu-latest
+        steps:
+        - uses: actions/checkout@v1
+        - uses: ZedThree/clang-tidy-review@v0.12.0
+          id: review
+
+        # Uploads an artefact containing clang_fixes.json
+        - uses: ZedThree/clang-tidy-review/upload@v0.12.0
+          id: upload-review
+
+        # If there are any comments, fail the check
+        - if: steps.review.outputs.total_comments > 0
+          run: exit 1