Implements the auto map functionality for the GC adapter.
The controls map nicely to the original 3ds controls, with the select button being mapped to the Z button on GC.
The ZL/ZR buttons are not mapped by this feature.
Streamlines the code and introduces fixes for the origin status of the controller along with adapter hotplug support
Co-Authored-By: Narr the Reg <5944268+german77@users.noreply.github.com>
Co-Authored-By: LC <712067+lioncash@users.noreply.github.com>
This is a port of the initial GameCube adapter input support i added into yuzu emulator.
It requires the same setup as when it was first introduced in yuzu, requiring the Zadig driver be installed for the adapter to allow it to interface with libusb.
