#159 Controller keys and joysticks binding UI

[Korwin]

Currently, the "Fuse - Configure Joystick" window looks like there is no controller connected even when the controller is connected, and only keyboard keys can be assigned to the emulated Cursor, Kempston, Sinclair 1, Sinclair 2, Timex 1, Timex 2, and Fuller keys and directions.

I suggest evaluating the convenience and versatility of the Steam Launcher key mapping interface, and redesigning the current interface to be more user-friendly and universal.

[Zandquar the Feral]

I am working next to this at the moment - I have (hardcoded) cursor keys and tab key working as UDLR/Fire right now.
Next, I aim to allow those native keys to be mapped.
Following on from that I will attempt to do the same with joystick/controller.