Using JSON schemas which are not described by a JSONSchema meta schema

[tegx]

This is a feature request i guess, if I upload the following schema:

}
  "$schema": "http://localhost:8040/api/v1/schemas/CDCSchema",
  "$id": "http://localhost:8040/api/v1/schemas/CUG",
  "title": "CUG",
  "type": "object",
  "...": "..."
}

an internal error message is generated: Error validating JSON schema: Unknown MetaSchema: https://localhost:8040/api/v1/schemas/CDCSchema. (This message is not in the response (which is ok^^).)

It would be helpful if schemas can be used that are not directly described by a JSONSchema meta schema. For the beginning it would be enough (at least for me) to consider only meta schemas that are located in the store instance. =)