Bug 34233: Move select2 include out of patron-search.inc

Bug 34233: Move select2 include out of patron-search.inc

1. Apply patch
2. Place a hold and make sure the patron pickup locations are
   populating correctly again/
3. Work through the test plan on Bug 28726 to make sure it still works.
4. Enable ArticleRequests, make sure you can still do a patron search
   there.
5. Do a patron search from members.tt, make sure that still 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>