Removes static assignment of tracker script variations

[Vigasaurus]

Changes

• Cuts down on the need for manual combinatoric generation for script variant names and aliases
• Changes manual process for adding script types to just appending string to an array (in two places)
• Assigns standard format for variant variable names (variant name, with - replaced with _)

Notes:

• The file name generation grows at 2^n, so it could potentially be manageable without this
• The alias generation grows at n! which is certainly unmanageable manually
• From some quick and dirty tests, up to at least 9 variants are handled somewhat gracefully and in appropriate time with this system (this is 500+ tracker files, so hopefully if there are really more than 9 distinct variants of the script down the line, a better system can be created then) - and this process only happens on image creation

Tests

• This PR does not require tests

Changelog

• This PR does not make a user-facing change

Documentation

• This change does not need a documentation update

[Vigasaurus]

I've done pretty significant testing and have verified this to work how it should. (And didn't see much code cleanup opportunity without adding unnecessary complexity).

I considered adding tests originally, but the only way I could see them being maintainable was if they checked for the primary files, and some random subset of variations - but that felt a bit whacky. Let me know if you have any ideas on tests/similar.

[ukutaht]

Sorry for the long delay, looks good!