Feature Request: Xbox gamepad / xinput support

[Gagert]

It would be neat to be able to enjoy Carma 1 + Splat Pack with proper controller support, making it possible to map everything to an Xbox gamepad / xinput device. Perfect for couch gaming in front of the TV.

I suppose SDL2 has support for xinput, or at least the various Xbox gamepads. Even a simple text file for button mapping on an xinput device would be more than good enough if you ask me.