CSPACE-2558,CSPACE-2556: When returning lists of authority references (terms used...

CSPACE-2558,CSPACE-2556: When returning lists of authority references (terms used) within a record, the sourceField name is once again correct for value instances of singly repeatable fields, rather than reflecting the parent field's name.  This check-in assumes one level of repeatability (a parent field with 0-n child fields of the same name and type) and will require revision for complex, or nested, repeatability, but also lays the groundwork for such support.