Gamepad HID support

[farooqkz]

It'll be nice if we could use RMK to build gamepads for PC.

PS: I have a hobby project: https://hackaday.io/project/205713-sega-genesis-wireless-gamepad

[farooqkz]

If there is no time pressure, I'm working on it. Can you please assign me?

Edit: I'm working on "initial support". The goal is having it working with core feats. But not supporting all gamepads and their features.