Changes to Get metadata on Person Fields

added authentication authorization bad-request conflict method-not-allowed not-acceptable not-found not-implemented rate-limit server timeout unprocessable-entity unsupported-media-type validation discriminator mapping keys to the errors/items response property for the response status default

added bad-request validation discriminator mapping keys to the errors/items response property for the response status 400

added field-only attribute-on-field discriminator mapping keys to the data/items/filterability/oneOf[subschema #2: FieldFilterability] response property for the response status 200

added field-only attribute-on-field discriminator mapping keys to the data/items/sortability/oneOf[subschema #2: FieldSortability] response property for the response status 200

removed the quarter enum value from the data/items/filterability/oneOf[subschema #2: FieldFilterability]/oneOf[subschema #1: FieldFilterabilityFieldOnly]/operators/items/relativeDateUnits/items response property for the response status 200

removed the quarter enum value from the data/items/filterability/oneOf[subschema #2: FieldFilterability]/oneOf[subschema #2: FieldFilterabilityAttributeOnField]/attributes/items/operators/items/relativeDateUnits/items response property for the response status 200