Automate source code formatting with `clang-format`

[iamazeem]

• Add .clang-format based on Microsoft style guide

  • Microsoft's style guide
  • clang-format 14 or later is required.
  • ubnutu-latest (Ubuntu 22.04) runner has Clang-format: 13.0.1, 14.0.0, 15.0.7 preinstalled on it.
  • The default is 14.0.0 and it seems to be working well for our code base.

• Add shell script to run clang-format

• Update CI accordingly to integrate clang-format

  • CI will break for formatting errors in .c/.h/.h.in files.
  • Add separate job format to run clang-format
  • Add separate job tag to set TAG output parameter for ci job

• Format all existing C/Markdown/JS/JSON source files for future conformance

• Fix usage text

  • Update tests accordingly

• Fixes #154

• Fixes #185

Signed-off-by: Azeem Sajid azeem.sajid@gmail.com

[iamazeem]

@liquidaty: Please review. Thanks!

As the PR is quite long, you might want to hide whitespace while reviewing it.

Here's its latest workflow run: https://github.com/liquidaty/zsv/actions/runs/10537929437