[Feature Request]: UDEV Input Source

[AngeloScipione]

Description

Add as a controller driver UDEV in PCSX2 Controller Settings.

Reason

Currently in Linux (Flathub, Bazzite, PCSX2 v2.2.0) only is usable SDL without option to use SDL Raw or another driver. If the controller's "automap" is right, good. However, If it's wrong... it's making unusable a controller. For example, I have a Steering Wheel that work very good in Windows PCSX2 but not in Linux PCSX2.
With UDEV Input Source, it must be more compatible with Linux.

NOTE: I want to say with "automap" when the system call a input like with a known name (like "btn_a") instead a generic way ("btn_4). It looks like when an axis is asigned as a button, it doesn't work properly. Also PCSX2 menu and automatic mapping use this references, and it make chaotic navigation.

Examples

Retroarch works with this. You can choose a driver for the app and use controllers.