cmake: move physfs.h to include folder + doxygen fix#76

Open

madebr wants to merge 2 commits intoicculus:mainfrom madebr:cmake-fixes

+28-6

Commits on Feb 23, 2024

cmake: disable documentation and installation targets when adding PhysicsFS as a subproject
madebr
committed
cmake: fix Doxygen documentation generation + install html & man pages
madebr
committed