chore: create examples/git-clang-format

[lumirlumir]

This pull request introduces a new example project demonstrating the usage of the git-clang-format command. The changes include configuration files, documentation, and example source code.

New example project for git-clang-format:

• examples/git-clang-format/.clang-format: Added configuration file based on Google style with a column limit of 90.
• examples/git-clang-format/README.md: Added documentation explaining how to use git-clang-format with a step-by-step guide and example outputs.
• examples/git-clang-format/package.json: Added package configuration with scripts for modifying and formatting the example source code.
• examples/git-clang-format/src/main.c: Added example source code file to demonstrate the formatting changes.
• examples/git-clang-format/src/main_overwrite.txt: Added helper file used by the script to modify the example source code.

[github-actions]

Labels have been automatically applied based on the conventional commit types.🏷️

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 100.00%. Comparing base (8c651d4) to head (4c25fe6).
Report is 1 commits behind head on main.

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  Coverage   100.00%   100.00%           
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  Files           11        11           
  Lines          416       416           
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  Hits           416       416           

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