AI: Add AI Service functionality (enabled for Windows/Mac/Linux/Android/iOS).This PR adds a video_shader_delay setting (in ms) and (advanced) menu entries Video -> Auto-Shader Delay, allowing to work around the issue

Screen grabbing software like streaming software can interfere with the loading of shaders, resulting in graphical glitches or freezes.

SHADERS: Implement video_shader_delay setting.

SHADERS: Fix shader loading and saving in content-less cores.

Would also cause potential crashes on OSX and 3DS at startup

PLAYLISTS: Fix playlist heap corruption bug.

MENU/XMB: Smooth vertical ticker scrolling.

LOCALIZATION: Update Polish translation.

LOCALIZATION: Update Korean translation.

LOCALIZATION: Update Japanese translation.

IOS: Use launch storyboard to properly support all screen sizes.

GLCORE: Fix regression - shaders don't work.

CHEEVOS: Add hashing support for PSX (bin/cue, chd, or real CD).

REMAPS: Fix analog remapping regression -analog remapping would break controls.

MENU/RGUI: Correctly rescale menu when resizing window if aspect ratio lock is enabled.

METAL/STB: Fix font driver issue with AMD GPUs on MacOS.

METAL: Fix overlay issue - setup correct viewport before rendering overlay.

GLCORE: Ensure correct scaling of menu texture (with RGUI).

SWITCH: Add 'AI Service' option to Switch (untested).

MENU: Add 12-hour time/date versions of all formats.

LOCALIZATION: Update Portuguese Brazilian Translation.

IOS: Update for iOS 13, fix the asset packaging issues.

CHEEVOS: Add hashing support for PSX (bin/cue, chd, or real CD) (for real this time, got added in the CHANGELOG for v2 then reverted before it hit release).

COMMON: Enable customisation of runtime 'last played' display format.

Retroarch ppsspp textures