Bug 30716: Add collection to cn_browser results

Bug 30716: Add collection to cn_browser results

To test:
1. Go to MARC bibliographic framework, pick a framework and go to 952, subfield "o". Turn the cn_browser plugin on.
2. Pick or create an item in that framework, edit that item.
3. TO the right of the 952$o notice the "...". Click that start the call number browser.
4. Notice there is no column for collection.
5. Apply patch, restart_all
6. Notice there is now a column for with the items collection.

Signed-off-by: David Nind <david@davidnind.com>
Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>