Retroachievements support

[MrArdillo]

I saw that retroachievements has compatibility for the ps2 versions and i had the question if it will be possible to add an form to make it compatible with this version too https://retroachievements.org/game/2774 https://retroachievements.org/game/3062

[dallmeyer]

#3905
#4025

we have multiple threads about this already, let's keep the discussion in one place