Log Message:
SDL2: Update to 2.30.0

Changelog:
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2.30.0:
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General:
* Added support for 2 bits-per-pixel indexed surface formats
* Added the function SDL_GameControllerGetSteamHandle() to get the Steam API \ 
handle for a controller, if available
* Added the event SDL_CONTROLLERSTEAMHANDLEUPDATED which is sent when the Steam \ 
API handle for a controller changes. This could also change the name, VID, and \ 
PID of the controller.
* Added the environment variable SDL_LOGGING to control default log output

macOS:
* Added the hint SDL_HINT_JOYSTICK_IOKIT to control whether the IOKit controller \ 
driver should be used
* Added the hint SDL_HINT_JOYSTICK_MFI to control whether the GCController \ 
controller driver should be used
* Added the hint SDL_HINT_RENDER_METAL_PREFER_LOW_POWER_DEVICE to choose whether \ 
high or low power GPU should be used for rendering, in the case where there are \ 
multiple GPUs available

Xbox:
* Added the function SDL_GDKGetDefaultUser()