Bug 29389: Add holding branch to the holds queue report

Bug 29389: Add holding branch to the holds queue report

This patch adds the holding branch to the hold queue report.
It is added as hidden by default, when running per branch it is not needed

To test:
 1 - Place some holds in your system
 2 - perl misc/cronjobs/holds/build_holdsqueue.pl
 3 - View the holds queue
 4 - Note there is no 'Current library' column
 5 - Apply patch
 6 - Reload
 7 - Note the column is not there
 8 - Click column setting gear
 9 - Check the column and confirm it appears
10 - Confirm the filter works

Signed-off-by: Owen Leonard <oleonard@myacpl.org>
Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>