Added binding for SDL_GetDisplayUsableBounds.
Added binding for SDL_GetDisplayUsableBounds.

Cobrand/rust-sdl2,Rust-SDL2/rust-sdl2,Cobrand/rust-sdl2,AngryLawyer/rust-sdl2,Rust-SDL2/rust-sdl2,Rust-SDL2/rust-sdl2,Cobrand/rust-sdl2