Apply clang tidy to class names

[duncanspumpkin]

This only applies the following clang tidy check.

• key: readability-identifier-naming.ClassCase value: 'CamelCase'

I will revert the other changes clang tidy made without asking.

[OmniBlade]

Could we do something similar to how clang-format is set up so we can run a format from a target and catch style violations on the CI. I'm happy to enforce more of the style guide automatically :D

[duncanspumpkin]

Yes that is possible. It will take a little while to get in the state where this could be enforced. This GitHub action could be used https://github.com/platisd/clang-tidy-pr-comments