Update for katsu uuids

[daisieh]

Updates to handle the changes in Katsu's schema.yml that is now being generated slightly differently.

• DonorWithClinicalData is now named DonorWithClinicalDataSchema
• Properties in the nested schemas are now generated alphabetically, so...
• the submitter_*_id is not necessarily the first property. We now use the validation_schema in the MoHSchema class to find the ID name.

There are also changes to the moh_template.csv's ordering to match the new output of generate_schema.py.

These are changes required after the katsu change in DIG-1355

[mshadbolt]

This looks good to me. Great that there weren't too many changes.

Would be good to check ingest still works as expected with the outputs once we also make required changes there too.