Release v0.1.3: Add uv support and update to official TOON spec organ…

…ization

Fix linting issues

- Fix import order
- Remove unused imports
- Break long lines to comply with 100 char limit

Fix hyphen quoting rule to match TOON v0.4.1 spec - only quote string…

…s starting with hyphen, not containing it.

Fix test suite to match TOON format - array length markers, string qu…

…oting, tabular format (37/37 passing)