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]

I suggest trimming this list of ignore words down to the bare minimum needed by this repo. A lot of these words are unique to the main repo, and it's best not to ignore them here. (That way, we catch more spelling mistakes.)

[Josverl]

I have trimmed down the list and moved the wordlist into tools/ignore_words.txt
one word per line , Should help on the tracking changes going forward.
reduced further by adding # codespell:ignore comments for lower frequency cases

[dpgeorge]

What's the reason the tests and this entities file need to be skipped?

[Josverl]

As mentioned in the PR :

• paths adjusted - ignores tests_*.py and html/entities as they have many non-words.

I have now added a configuration to enable disable codespell for blocks of code where it is impractical to repeat on each line.

# This wil be checked

# codespell:ignore-begin

# this won't 

# codespell:ignore-end

tests_
In my earlier validation I found a lot of problems in the tests so decided to exclude all together
now on second look , there were only a few remaining - some of which i fixed and a few that I added # ignores for