This PR extends the user schema service (V3 API) with the possibility to ListUserSchemas and GetUserSchemaByID.
The previously started guide is extended to demonstrate how to retrieve the schema(s) and notes the generated revision property.
This PR adds the functionality to manage user schemas through the new user schema service.
It includes the possibility to create a basic JSON schema and also provides a way on defining permissions (read, write) for owner and self context with an annotation.
Further annotations for OIDC claims and SAML attribute mappings will follow.
A guide on how to create a schema and assign permissions has been started. It will be extended though out the process of implementing the schema and users based on those.
Note:
This feature is in an early stage and therefore not enabled by default. To test it out, please enable the UserSchema feature flag on your instance / system though the feature service.
