Draft: wayland: Implement the "inputfd" wayland protocols

This allows lending control to applications of evdev devices, and withdrawing it with focus changes. Underneath, the device FD is revoked control through the EVIOCREVOKE ioctl, and closed. The newly focused client receives a brand new FD obtained through logind, which will be again revoked in a future focus change.

Draft as it depends on https://gitlab.freedesktop.org/wayland/wayland-protocols/-/merge_requests/110