Add Doxygen

* Add basic Doxyfile
* Add CI to build doxygen docs
* Add publish

Signed-off-by: Ryan Friedman <[email protected]>

Author: Ryanf55

.github/workflows/doxygen.yml

@@ -0,0 +1,20 @@
+name: Build Test
+on:
+  push:
+  pull_request:
+    branches:
+    - '*'
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+    steps:
+    - uses: actions/checkout@v4
+    - uses: mattnotmitt/[email protected]
+    - uses: peaceiris/actions-gh-pages@v3
+      with: 
+        github_token: ${{ secrets.GITHUB_TOKEN }}
+        publish_dir: ./html
+

Doxyfile

@@ -0,0 +1,5 @@
+PROJECT_NAME=grid_map_geo
+RECURSIVE=YES
+USE_MDFILE_AS_MAINPAGE=README.md
+WARN_IF_UNDOC_ENUM_VAL=YES
+WARN_NO_PARAMDOC=YES