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:
    • ignore-words stored in tools/ignore_words.txt
    • enablement of codespell ignore blocks
  • 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.

Example:

# This will be checked

# codespell:ignore-begin

# this part wil not be cheked

# codespell:ignore-end

Testing

Tested locally and in CI

Labeled as Docs- as there is no 🔨tools label

[dpgeorge]

This needs to stay as "unstall" because it's the opposite of "stall".

Maybe changing it to "un-stall" would be best? It seems that codespell doesn't complain about "un-stall".

[Josverl]

Ah, that was what was intended.
Un-stall does make more sense to me as a non-native speaker.

[Josverl]

done

[Josverl]

Done