Entropy : Zero 2 Vortigaunts in EZ1

[1upD]

This PR is to cherry-pick content relating to EZ2 vorts into EZ1.

This will be opened in DRAFT status until it is ready for review.

[Blixibon]

I noticed this PR contains a lot of code from Mapbase that's nested within #ifdef MAPBASE blocks, as well as a few bits that still have #ifdef EZ2. Doesn't this branch not implement those preprocessors?

[1upD]

I noticed this PR contains a lot of code from Mapbase that's nested within #ifdef MAPBASE blocks, as well as a few bits that still have #ifdef EZ2. Doesn't this branch not implement those preprocessors?

That's a good shout. From what I remember, the MAPBASE preprocessor is defined as we had some Mapbase code in the codebase at the time (I still need to double check this) and EZ is defined, but EZ2 is not. Some of things in #ifdef EZ2 preprocessor blocks are meant to be reserved only for EZ2, but I think I should check all of them to be sure.