Add codespell to micropython-lib.

[Josverl]

Add the codespell configuration based on the micropython/micropython repo.
this was triggered by recent fixes and a comment from Damien

• Configuration added:
  • pyproject.toml
    Codespell configuration with:
    • some additional ignore-words
    • paths adjusted - ignores tests_*.py and html/entities as they have many non-words.
  • codespell.yml
    GitHub action runs on Push and PR
  • .pre-commit-config.yaml
    runs codespell on commit.
• The 2nd commit contains spelling corrections in comments , docstrings , and .md files based on the above configuration
• 3rd commit is the only code change. The requests module has a typo in the name a a variable (formated --> formatted)
  While this is a minor code change I did bump the version for that module.

Testing

Tested locally and in CI

Labeled as Docs- as there is no 🔨tools label