* Set correct rotation when connected to HDMI on Powkiddy x55.
* Deprecate EmulationStation splash screen.
* Fix bug setting 16:10 aspect ratio - move redundant script bits to a global function.
* Experiment with ES defaults.
* Replaces Powkiddy's function that contantly disables HDMI.
* Modifies boot args to no longer specify HDMI resolution.
* Splits SDL2 into SDL2 and SDL2-rotated.
* Adds environmental options to check for HDMI and if it isn't connected
preload the rotation patched SDL2.
* Add support for RG353V (use RG353P image, enable switch in system settings).
* Fix language selection bug.
* Fix another brightness bug.
* Fix shader build conflict.
* Force Retroarch to use glcore on the RG552 if GL is still enabled.
