Enable clippy

.github/workflows/clippy.yml

@@ -0,0 +1,19 @@
+name: Clippy check
+
+on:
+  push:
+
+permissions:
+    checks: write
+    contents: read
+
+jobs:
+  clippy_check:
+    runs-on: ubuntu-latest
+    steps:
+        - uses: actions/checkout@v1
+        - run: rustup component add clippy
+        - uses: actions-rs/clippy-check@v1
+          with:
+            token: ${{ secrets.GITHUB_TOKEN }}
+            args: --all-features