This PR enables us to apply the proper quotation marks, including support for escapes. There are some significant TODOs, especially around implicit concatenations like:
```py
(
"abc"
"def"
)
```
Which are represented as a single AST node, which requires us to tokenize _within_ the formatter to identify all the individual string parts.
- Implement N999 (following flake8-module-naming) in pep8_naming
- Refactor pep8_naming: split rules.rs into file per rule
- Documentation for majority of the violations
Closes https://github.com/charliermarsh/ruff/issues/2734
