Specify a new element to describe the provenance of deposit metadata
This will be useful for metadata-only deposit, as there is not necessarily and origin in the referenced SWHID; and even when there is, it is usually not the actual source of the metadata.
Therefore, we need this new field to link back to the provenance of the metadata.
Related to #3677 (closed)
Migrated from D7174 (view on Phabricator)