RPM Support

RCM needs to see the list of units that were not copied to the destination repo due to signature filter failure.

This information will be placed in the task result report. Besides 'unit_successful' report will have 'units_unsuccessful"(or similar) on case there will be units that did not pass signature filter during copy operation.
Note that units that simply did NOT match criteria will *not* be placed in the task result report, just those that did not pass signature filter will end up in the task report result list.
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Approved by jluza.