[WIP] chore: add utilities to check if call/forward methods are documented.

[sayakpaul]

What does this PR do?

To have some much-needed consistency in our docstrings where it should matter.

The diff seems large because of the docstring stuff. Main stuff is under .github/workflows/, utils/check_forward_call_docstrings.py, and Makefile.

[stevhliu]

very nice!

should we run the checker locally and see what pops up and include the cleanups here before landing this pr?

[sayakpaul]

should we run the checker locally and see what pops up and include the cleanups here before landing this pr?

We can actually run python utils/check_forward_call_docstrings.py locally to get a list of what needs fixing. The CI is also reporting those.

Do we want to fix them in this PR?

[stevhliu]

oh i see it now, wow this is really handy! i'm ok with either fixing here or in separate pr :)

[sayakpaul]

i'm ok with either fixing here or in separate pr :)

Do you maybe want to branch off of this PR branch and open a PR to this one with the fixes?

[HuggingFaceDocBuilderDev]

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