`JSONSchema` and `JSONPointer` don’t follow naming conventions

[SabrinaJewson]

See C-CASE:

In UpperCamelCase, acronyms and contractions of compound words count as one word: use Uuid rather than UUID, Usize rather than USize or Stdin rather than StdIn

These types should be named JsonSchema and JsonPointer.

(this is quite low-priority but you might want to fix it before 1.0)

[Stranger6667]

Thank you for opening this issue! I was thinking about it and the main concern was the name clash with ‘schemars’, so I put all the renaming things aside. However, I’d like to address it before 1.0