docs: Overhaul and organize all of the existing documentation we have

[xTVaser]

Preview changes here - https://xtvaser.github.io/jak-project/api-docs.html#/type_system (may be some caching / CDN issues, overview page is stubborn to load but should)

There isn't any new documentation, just cleaned up and organized the markdown / removed duplicate documentation. Added syntax highlighting / a plugin to copy paste code examples out of the docs (any code blocks).

I think this is sufficient to close #371 documentation can always get better but, this feels like a pretty good start to me.

[coveralls]

Pull Request Test Coverage Report for Build 803589881

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 69.276%

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Totals
Change from base Build 803312863:	0.0%
Covered Lines:	34266
Relevant Lines:	49463

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💛 - Coveralls