chore: adding autogenerated docs for noirjs

[signorecello]

Description

This PR works with this one on the docs repo to autogenerate documentation for the NoirJS and Barretenberg classes.

Problem*

Manually documenting the reference for NoirJS packages involves a lot of effort. Let's have machines doing it instead.

Summary

• Added typedoc.json files
• Made changes to tsconfig.json in the types package so it correctly resolves references
• Ignored tsbuildinfo because it's generated by the "references" section above
• Added some decorators

TODO

• Finish the decoration of methods to make nice docs
• Other visual changes

[kobyhallx]

Please use draft when you do not want to merge.

[TomAFrench]

It also adds some "quality of life" things, not related to docs so I can make them a separate PR:

Please split these out into separate PRs so they can be discussed separately. We shouldn't be making omnibus PRs as it makes it harder to review, if any of the changes are contentious then it holds up the whole lot.