Declarative Input Normalizer
- Revisit the posibility of an API like JOI: username: DIN.string().max(5)
- Optional field validation
- Regex validation for strings
- Add comom string patterns (eg: email, ) (what would be a good name? format? )
- Enum field validation
- Add truncate transformation for strings
- Add trim transformation for strings
- Add date type and proper validations