[DS-4556] Replication Task Suite: Support the reporting of individual failures when part of a larger curation action

[dspace-bot]

Imported from JIRA [DS-4556] created by bbranan

This task was split out of DS-2000

We should enhance the error handling in the Replication Task Suite so that it's possible to report individual backup failures, but continue the backup process. We should not always return a complete failure if a single error is encountered...instead we should backup what content we can and report which content failed to be backed up.

[dspace-bot]

Is related to: DS-2000