Add github action for C++ clang-format style check

[yinqingh]

Fix #202.

This PR includes two changes:

• Reformat all files based on cudf .clang-format style
• Add github action for C++ clang-format style check

[pxLi]

Please help provide some test runs (like in your forked repos), to show both success and failure cases, thanks

[pxLi]

also cc @ttnghia to help check if the auto-formatted changes look good thanks

[pxLi]

seems we should have enough time to merge this into 23.12 to avoid auto-merge commits to override the format checks.

re-targeted it to branch-23.12

The base branch was changed.

[pxLi]

just saw you were not getting the correct merged commit sha with pull_request_target + pre-commit/action.
then try using pull_request event directly.

some other options could be that keep pull_request_target trigger, but then checkout required merge sha (this one could help avoid people touching workflow file directly to try pass CI unexpectedly)

    with:
      ref: "${{ github.event.pull_request.merge_commit_sha }}"

[yinqingh]

Yes. Seems it always checkout the default branch in the tests. Will fix this. Thanks!

[yinqingh]

Changed to pull_request event

[pxLi]

just caught a new merged commit format issue at https://github.com/NVIDIA/spark-rapids-jni/actions/runs/7014779963/job/19083019630?pr=1597 👍

please upmerge and re-format to get a clean pass, we should be good to merge

[pxLi]

build

[yinqingh]

Test clang check CI in the PR: yinqingh#4

• https://github.com/yinqingh/spark-rapids-jni/actions/runs/7014753289/job/19082947944?pr=4
• https://github.com/yinqingh/spark-rapids-jni/actions/runs/7014769163/job/19082990980?pr=4