Add information on creating models from json schema using datamodel-codegen

[RS-Credentive]

No description provided.

[ChrisCompton]

@RS-Credentive let me know if you would be interested in how this is generated, and if it would be helpful to what you are doing in oscal-pydantic. See: https://github.com/Compton-NIST/OSCALic/blob/main/src/oscalic/schema.py

I was experimenting with this: https://github.com/tefra/xsdata-pydantic

It is not perfect, but it might give you a boost to build out the pydantic models.

[RS-Credentive]

@ChrisCompton, this is very interesting! I will play with it in a VM to see what the developer experience is like. I like the idea of automatically generating the objects from XSD rather than JSON schema since I think the XSD is a complete specification of the OSCAL standard. Thanks for bringing this to my attention.