okrf validator is needed

[Jbutler-helpful]

This should be built in the Tools folder

Focus on OKH and OKW for now

if it is using a schema it should use our schema
https://github.com/helpfulengineering/OKF-Schema

[Jbutler-helpful]

should we move https://github.com/helpfulengineering/OKF-Schema into the platform repo

[Jbutler-helpful]

In review with Harry and Tim I would endorse using

https://pydantic.dev/

[Jbutler-helpful]

Error messages need to be human readable