ci: add include-what-you-use step in pull requests checks

Author: AlexyPellegrini

.github/workflows/iwyu.yml

@@ -0,0 +1,22 @@
+name: Lint Commit Messages
+on: [pull_request]
+
+permissions:
+  contents: read
+  pull-requests: read
+
+jobs:
+  iwyu: # use slicer-core-sdk to do an include what you use pass
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: "3.13"
+      - run: |
+          sudo apt-get update && sudo apt-get install mesa-utils libx11-dev iwyu
+          python3 -m venv venv
+          source ./venv/bin/activate
+          export SKBUILD_CMAKE_DEFINE="CMAKE_CXX_INCLUDE_WHAT_YOU_USE=/usr/bin/iwyu"
+          pip wheel ./LayerDM --verbose --extra-index-url=https://vtk.org/files/wheel-sdks