Some minor tweaks were made to remove Android-specific workarounds
that CSFML doesn't need and removing a few warnings that are not
feasible to fix at the moment.
The modules provided are:
- csfml-system
- csfml-graphics
- csfml-window
- csfml-audio
- csfml-network
- csfml-all (depends on all the above modules)
They are installed to the standard location for pkg-config files on Linux.
This is adapted from SFML own pkg-config files.