replace/rewrite vector module to use list as the underlying implementation

[AlecTroemel]

I've personally transitioned to representing vectors as tuples instead of tables. Some reasons

• Matches how library's such as jaylib represent vectors
• allows me to override operators to work with tuples, which feels great
• IMO leads to a cleaner implementation, the "L" in lisp does stand for "list"!

Here's what I've been using -> https://git.sr.ht/~alect/jmpulse/tree/master/item/src/vectors.janet. It would be great if these 2 projects shared the same implementation.. however I'm not sure how to organize that yet