Split vice into 10 separate cores

[garbear]

Description

This PR splits game.libretro.vice into 10 separate cores:

• game.libretro.vice_x64
• game.libretro.vice_x64dtv
• game.libretro.vice_x64sc
• game.libretro.vice_x128
• game.libretro.vice_xcbm2
• game.libretro.vice_xcbm5x0
• game.libretro.vice_xpet
• game.libretro.vice_xplus4
• game.libretro.vice_xscpu64
• game.libretro.vice_xvic

Related PRs and issues

Requires https://github.com/libretro/libretro-super/pull/1715

Fixes https://github.com/kodi-game/game.libretro.vice_x64/issues/5

How has this been tested?

CI run of all 10 vice cores: https://dev.azure.com/themagnificentmrb/kodi-game-scripting/_build/results?buildId=1089&view=logs&j=b724a4ce-d971-5e6e-9f98-76134d834be3