[Test] Add complexity workflow file

.github/workflows/check-complexity.yaml

@@ -0,0 +1,55 @@
+name: Wily on PR
+
+on:
+  pull_request:
+
+
+jobs:
+
+  evaluate-complexity:
+    name: Evaluate Code complexity
+    runs-on: ubuntu-22.04
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
+          ref: ${{ github.event.pull_request.head.ref }}
+      - name: Install Wily
+        run: pip install wily==1.20.0
+      - name: Build cache and diff
+        id: wily
+        run: |
+          wily build my_package/ tests/
+          DIFF=$(wily diff my_package/ tests/ --no-detail -r origin/${{ github.event.pull_request.base.ref }})
+          echo "$DIFF"
+
+          # Build multine output
+          DIFF="${DIFF//'%'/'%25'}"
+          DIFF="${DIFF//$'\n'/'%0A'}"
+          DIFF="${DIFF//$'\r'/'%0D'}"
+          echo "::set-output name=diff::$DIFF"
+      - name: Find current PR
+        uses: jwalton/gh-find-current-pr@v1
+        id: findPr
+      - name: Add Wily PR Comment
+        uses: marocchino/sticky-pull-request-comment@v2
+        if: steps.findPr.outputs.number && steps.wily.outputs.diff != ''
+        with:
+          recreate: true
+          number: ${{ steps.findPr.outputs.number }}
+          message: |
+            ```
+            ${{ steps.wily.outputs.diff }}
+            ```
+      - name: Add Wily PR Comment
+        uses: marocchino/sticky-pull-request-comment@v2
+        if: steps.findPr.outputs.number && steps.wily.outputs.diff == ''
+        with:
+          recreate: true
+          number: ${{ steps.findPr.outputs.number }}
+          message: |
+            ```
+            Wily: No changes in complexity detected.
+            ```