Changes
- Added Dualshock 3 controller support (press the PS button after you plug it in)
- Added generic DInput controller support
- Fixed wireless Xbox 360 right rumble motor not working
- Fixed wireless Xbox 360 controller LEDs not being set properly
- Added LED indication for USB device being mounted/unmounted
- Added PCB files for a custom board using the Waveshare RP2040-Zero
- Refactored a bunch of things, made the usbd folder its own repo for easier integration into other projects