Add Kryptorious Python dev tooling to CLI Tools

[CodeGero]

Adds a small set of MIT-licensed CLI tools for Python developers under a new 'Python Dev Tooling' sub-group in the CLI Tools section:

• kryptorious-depguard: cross-ecosystem dependency auditor (undeclared imports, unused deps, unpinned specifiers, lockfile drift)
• kryptorious-apiguard: OpenAPI breaking-change detector (flags removed endpoints / type changes before ship)
• kryptorious-gitsweep: git repository hygiene (prunes stale branches, surfaces forgotten worktrees)
• kryptorious-csvclean: validates and normalizes CSV/TSV from the command line

All are published to PyPI, open-source (MIT), and have public repositories. Happy to adjust placement or remove any that don't fit the list's scope.

[JinyangWang27]

@CodeGero Thanks for the contribution. This PR rewrites effectively the entire README due to a line-ending conversion, resulting in nearly 1,200 deletions and additions for only a few intended entries. This creates unnecessary merge risk and makes the actual changes difficult to review.

The PR also bundles four projects from the same author and introduces a new subsection specifically for them. Please avoid bulk self-promotion and unrelated structural changes.

Any future submission should preserve the existing file formatting, contain only the minimal intended diff, and propose one established project at a time in an existing appropriate category.