LP#1978839 Holds Pull List - Library Shortnames

LP#1978839 Holds Pull List - Library Shortnames

Display shortnames instead of IDs for the Requesting Library
and Selection Library columns in the Pull List grid in the
staff client.

Test:
1. Circulation->Pull List for Hold Requests
2. Select OU with holds to pull or place an item hold on an
   available item and select the owning OU
3. Add the Requesting Library and Selection Library columns
   (note IDs are displayed)
5. Apply patch, rebuild Angular, rebuild Perl
6. Refresh and re-add columns (note shortnames are displayed)

Signed-off-by: Dan Briem <dbriem@wlsmail.org>