Name cleanup mass refactor

[nekomaster1000]

Mass refactor of IE for Release 3 that fixes archaic names, such as 'glowdust' now being the 'shimmer' prefix, amongst other things.

This, of course, would break worlds created in previous versions of the mod, but since 3.0 will have worldgen updates anyway, that's fine in my book.

In time, we should discuss as a team what other archaic or unnecessary things could be altered or removed from the project (Crumbling Blackstone for example.)

[SwanX1]

Rename the modid from infernalexp to infernalexpansion while we're at it