Add automatic benchmarks

Signed-off-by: Heinz N. Gies <[email protected]>

.github/workflows/criterion.yml

@@ -0,0 +1,14 @@
+on: [pull_request]
+name: benchmark pull requests
+jobs:
+  runBenchmark:
+    name: run benchmark
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - uses: boa-dev/criterion-compare-action@v3
+        with:
+          # Optional. Compare only this benchmark target
+          benchName: "insert"
+          # Needed. The name of the branch to compare with. This default uses the branch which is being pulled against
+          branchName: ${{ github.base_ref }}