[tools] Replace clang_format.py with clang_format_new.py (#35114)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/35114
This commit replaces clang_format.py with clang_format_new.py, a
new and improved script that downloads, verifies and runs a platform-appropriate
clang-format binary on files in a predefined set of whitelisted directories.
Testing:
Ran the script.
Test Plan: Imported from OSS
Reviewed By: eellison
Differential Revision: D20568450
Pulled By: SplitInfinity
fbshipit-source-id: 3bd782dfc211a053c5b419fd4318d38616b5fd16
