Request: Support for SDL2's game controller / joystick API

[kotrenn]

Would like to add support for input from gamepads. SDL 1.2 had this through Joystick support. SDL 2 added support for game controllers, which at a glance appear to be an extension of support for joysticks.

Game Controller
Joystick API Documentation

[HexDecimal]

Adding controller objects should be simple enough, but events will also need to be added.

[HexDecimal]

I've ported joysticks to Python-tcod but it will take a while for the docs to be complete.