* common: cleanup media loading code
* common: add unknown files even if it doesn't exist in gamelist.xml
* common: change menus items position
* common: fix games paths starting with ./
* common: fix medias paths with recalbox gamelist.xml format
* common: add ability to use custom gamelist.xml file in roms folders, overriding embedded (romfs) gamelist.xml
* common: add SHOW_AVAILABLE menu option to hide missing files/roms/systems from gamelist (restart required)
* ui: better handling of auto screen resolution
* ui: add font scaling option
* ui: add aspect ratio option
* ui: do not show extensions in rom list
* skins: fix start and select buttons size
* skins: fix option menu title position
* skins: remove big skin (font scaling and aspect ratio options should be enough now)
* skins: add config.cfg.override and config.cfg.override.43 support
* skins: allow/fix skin override from data directory
* pnes: bump nestopia to 1.52.0
* pnes: fix data paths (nestopia saves, etc...)
* pfbneo: bump fbneo to latest git revision
* pgen: bump Genesis-Plus-GX to latest git revision (c3f02f9c9059e7f4898dd73feac57ef610e22db0)
* pgen: fix vita audio crackling (fps drops)
* psnes: bump to latest git revision (153965e5f2fbb0b638868ac3fa89ff8b0363d22c)
* vita, 3ds, windows: fix compilation
* vita: enable cps3 driver back (OPTION_LIGHT)
* vita: fix app version in sfo creation
* switch(pnes): invert A/B buttons by default
* switch: force 720p resolution

* pfbneo: support latest fbneo core (eda8ae4)
* pfbneo: update arcade gamelist.xml
* psnes: fix missing game in gamelist (Elfaria - The Isle of the Blest (Japan).zip)
* common: fix video snap delay option
* pgen: fix gamegear resolution and centering
* pgen: add unknown files to correct system
* pgen: add mega-cd chd support
* common: use rom filepath hash for unknown roms id (fix very slow roms discovery)
* pgen: do not add mega-cd bin files to roms listing
* psnes: create saves directory on startup

* sdl2_audio: fill buffer with silence if nothing to play (fix pnes audio crap on game start)
* psnes: fix audio buffer overlflow (fix random crashes)
* psnes: fix minor remaining audio crackling (perfect audio now, hopefully)
* psnes: improve/simplify rendering code
* psnes: update to latest snes9x revision (8c0a4a4)
* windows: fix crackling audio
* gamelist: fix game id calculation (random crashes on unknown roms)
* windows: fix pnes compilation

* windows: hopefully fix missing libcrypto-1_1-x64.dll
* pgen: fix launchers icons
* vita: fix setTextureRect texture pitch (fix pgen)
* pgen: fix roms directories creation on first run

* common: add new emulator (pgen: genesis-plus-gx port)
* common: update gamelists
* common: fix preview images and videos links
* ui: only show know files extensions in rom list
* ui: fix favorites preview images and videos
* input: add rotation support back (wip)
* skins: enable font filtering back, remove big_preview skin
* skins: add "config.cfg.override" file support for skin overriding
* skins: code and data cleanup
* skins: improve scaling
* psnes: fix crackling audio in some games (zelda, ff6...)
* vita: remove slow pvr support (fix framerate on a lot of games)
* vita: fix input rotation (wip)
* switch: refactor inputs (use sdl2 gamecontroller and new sdl2 automatic single joycons handling)
* switch: update buttons gfx
* windows: fix compilation, code improvements
* android: add android support (wip)
* and more...