Generate Doxygen Documentation

Make sure to install Doxygen and Graphviz:

brew install doxygen graphviz

Build the project with the docs:

conan install . --build=missing -s build_type=Debug
cmake --preset conan-debug -DSPATIAL_ENABLE_DOXYGEN=ON
cmake --build . --preset conan-debug --target Spatial.Docs

Run the documentation web server:

python3 -m http.server --directory ./build/Debug/html