Merge other game engine reimplementations into ScummVM ecosystem

[necros2k7]

for example CatacombGL, Abuse etc...

[digitall]

necros2k7: This is reasonable, but please see ​https://docs.scummvm.org/en/latest/help/faq.html#will-scummvm-support-other-games-in-the-future.

However, this ticket is far too general to be closed and thus no useful i.e. similar to a ticket with "Fix all remaining bugs". A good idea, but not really actionable or achievable in a clear sense.

Feel free to submit a Pull Request with a specific game engine modified for ScummVM, though you may want to check with the team whether the game would likely be in scope i.e. Adventure / RPG.

[necros2k7]

That`s the idea to make scope of not only Adv/RPG games - but basically all DOS Win311 games 1 by 1