Add MetadataStatus per core schema in Metadata pydantic model

[jtyoung84]

Is your feature request related to a problem? Please describe. It would be nice to get a top level check of the status of each of the core schemas attached to a data asset (subject, procedures, rig, etc.) Some of the flags could be:

Describe the solution you'd like It would be nice to get a top level check of the status of each of the core schemas attached to a data asset (subject, procedures, rig, etc.). For example, we could subject_status, rig_status, etc. to the Metadata model. Some of the flags could be:

Valid: There is a valid model
Invalid: There is an invalid model
Corrupt: There is a json file found with the data asset, but it's not possible to add the json file to DocDB for some reason
Missing: There is no json file found for this data asset (this may be redundant if we just the field to None)

Describe alternatives you've considered A clear and concise description of any alternative solutions or features you've considered.

Additional context Add any other context or screenshots about the feature request here.