CreateRelationshipsJob should end if import failed

[laritakr]

The CreateRelationshipsJob tests whether the necessary items are ready to create the relationships. If it finds that we need to wait longer, the job reschedules itself and ends.

When an import fails, the CreateRelationshipsJob needs to be able to end, because it will never be able to complete successfully.

The job needs to check the work's import for failures which prevent relationships from being formed before continuing to retry/reschedule.