Fix the sound issues and crashes on some platforms
This commit updates misc/libphyslayer/physfsrwops.* files to the latest versions
provided by PhysFS project (https://github.com/icculus/physfs/tree/main/extras/).
foreach(dir
Fonts
Forts
Graphics
Locale
Maps
Missions
Music
Names
Scripts
Sounds
Themes
misc
)
add_subdirectory(${dir})
endforeach(dir)
if(${GL2})
add_subdirectory(Shaders)
endif(${GL2})