feat: command line support

[bobbyg603]

Description

• Adds command line supports
• Adds public exports
• Adds readme with usage instructions

Checklist

• [x] Tested manually
• [x] Unit tests pass with no errors or warnings
• [ ] Documentation updated (if applicable)
• [ ] Reviewed by at least 1 other contributor

[bobbyg603]

@daveplunkett please review when you're working next, thanks!