Adding clang-format to pre-commit YAML config.

[balancap]

Using the same clang-format version v17.0.6 as XLA project:
https://github.com/openxla/xla/blob/main/.github/workflows/clang_format.yml

@jakevdp I believe the project C++ codebase is small enough to directly add clang-format to pre-commit hooks. Beyond making sure every PR is well formatted, it also has the benefit of making sure everyone is using the same version (aligned on XLA codebase).

[jakevdp]

Hey, thanks for this!

I'm not sure we'll be able to merge this, because this repo is mirrored to Google's internal repo, which uses formatters that may differ in the details. When two formatters disagree on a change, it causes problems because it's often difficult if not impossible to write code in a way that satisfies both.

I'll pull in these changes to see if it causes any issues – if not, then we can probably try this out (though if it causes problems in the future I'll probably revert this change).

What do you think?

[balancap]

Thanks for the quick review, no worries if you need to revert it in the future (hopefully if we keep the same clang-format version as XLA it should be fine?)