Changelog 5.1pfbneo: fix some games (sfiii2,...) and megadrive system (sf2,...)pfbneo: fix video reinit code (mainly used by megadrive games)pfbneo: update gamelist.xml (fix mslug hacks system set as atomiswave, some clones, hacks and hb...)pfbneo: fix tg16 system idpfbneo: add/fix diagnostic and reset keys (press start 3 secondes for diag, coin 3 secondes for reset)pfbneo: fix Victory (Comsoft) systempfbneo: major input refactor (fix mortal kombat, outrun, etc...)pfbneo: handle fire6/fire7 (L2/R2) buttonspfbneo: use integers when possible for game list filtering (speed up system filtering)pfbneo: fix some flipped games orientation (comad..)pfbneo: use hiscore.dat from romfspfbneo: remove audio sync option (automatically enabled when force 60hz option is disabled)pfbneo (switch): fix/invert fire buttonspsnes: fix 50hz audiopsnes (switch): update skins texturespnes: update gamelist.xmlpnes: fix paths (for NstDatabase.xml, etc...)pnes: always force audio syncpnes: use romfs for NstDatabase.xmlpnes: update nestopia to latest git revision (c103378)pnes: fix states menupnes (ps4): fix datadirpnes/psnes: disable auto aspect ratio scaling modepnes/psnes: improve scalingcommon: improve audio code/qualitycommon: use zip names by default for rom listingcommon: fix per emulator config overridecommon: fix L/R system switch on non fbneo corescommon: fix messagebox title widthcommon: add status box for info messages, add very few tipscommon: use point filtering for fontscommon: correctly handle games aspect ratiocommon: add scaling mode option (auto/aspect/integer)switch: change menus buttons to L/R, fire 5/6 to ZL/ZRswitch: fix slow (roms) loading at startupswitch: fix for latest devkitpro changesswitch: fix some shadersps4: fix a lot of crashing games (memory fix)ps4: enable video previewsps4: fix default inputs configuration (L STICK for start, R STICK for coins, etc..)