Add CI step for doxygen

Author: vitalsong

.github/workflows/static.yml

@@ -0,0 +1,55 @@
+name: Deploy documentation to Github Pages
+
+on:
+  push:
+    branches: ["master"]
+
+  # Allows you to run this workflow manually from the Actions tab
+  workflow_dispatch:
+
+# Sets permissions of the GITHUB_TOKEN to allow deployment to GitHub Pages
+permissions:
+  contents: read
+  pages: write
+  id-token: write
+
+# Allow only one concurrent deployment, skipping runs queued between the run in-progress and latest queued.
+# However, do NOT cancel in-progress runs as we want to allow these production deployments to complete.
+concurrency:
+  group: "pages"
+  cancel-in-progress: false
+
+jobs:
+  deploy:
+    environment:
+      name: github-pages
+      url: ${{ steps.deployment.outputs.page_url }}
+
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup Pages
+        uses: actions/configure-pages@v4
+
+      - name: Install Doxygen
+        run: sudo apt install doxygen && doxygen --version
+
+      - name: Install Graphviz
+        run: sudo apt install graphviz
+         
+      - name: Build docs
+        run: cmake -B ${{github.workspace}}/build -DCMAKE_BUILD_TYPE=Release -DDSPLIB_BUILD_DOXYGEN=ON && cmake --build ${{github.workspace}}/build
+        env:
+          CXX: clang++
+
+      - name: Upload artifact
+        uses: actions/upload-pages-artifact@v3
+        with:
+          path: '${{github.workspace}}/build/docs/doxygen/html/'
+
+      - name: Deploy to GitHub Pages
+        id: deployment
+        uses: actions/deploy-pages@v4