lp1654529 Callnumber Sorting by Sortkey in Transit & Copy Buckets

lp1654529 Callnumber Sorting by Sortkey in Transit & Copy Buckets

- Add column for label_sortkey, displaying the data for a
Callnumber's Label.

Signed-off-by: Kyle Huckins <khuckins@catalyte.io>
 Changes to be committed:
	modified:   Open-ILS/src/templates/staff/cat/bucket/copy/t_view.tt2
	modified:   Open-ILS/src/templates/staff/circ/transits/t_list.tt2

Signed-off-by: Terran McCanna <tmccanna@georgialibraries.org>
Signed-off-by: Chris Sharp <csharp@georgialibraries.org>