lp1749502 Holds Pull List Print Order

lp1749502 Holds Pull List Print Order

- Ensure copy shelf location position is available for each hold on
holds shelf.
- Add _copy_location_position to hold_data while printing.

Signed-off-by: Kyle Huckins <khuckins@catalyte.io>

 Changes to be committed:
	modified:   Open-ILS/src/templates/staff/share/print_templates/t_hold_pull_list.tt2
	modified:   Open-ILS/web/js/ui/default/staff/circ/services/holds.js

Signed-off-by: Jason Stephenson <jason@sigio.com>
Signed-off-by: Josh Stompro <stompro@stompro.org>
Signed-off-by: John Amundson <jamundson@cwmars.org>