Summary of the PR

This will add North/South/East/West and Circle/Triangle/Square/Cross button enum values (which proxy to ABXY), as well as SDL specific inputs that don't exist with GLFW (They will be impossible to trigger when using the GLFW backend)

Related issues, Discord discussions, or proposals

https://discord.com/channels/521092042781229087/587346162802229298/1285662740467417250
https://github.com/dotnet/Silk.NET/blob/main/documentation/proposals/Proposal%20-%20Multi-Backend%20Input.md#25022022

Further Comments

I'm disabled, and can only play a lot of games with gamepads, having the gamepad API limit what actions can be done on a gamepad makes it harder to play the games I enjoy.