Bug 14883: Librarians are not warned if patron is restricted when placing holds

Bug 14883: Librarians are not warned if patron is restricted when placing holds

Librarians should be warned that a patron is restricted when placing
holds, as they are warned that a patron's acount has expired.

Test Plan:
1) Apply this patch
2) Add a restriction for a patron
3) Attempt to place a hold for that patron
4) Note the notice at the top notifying you that the patron is restricted

Works as expected.
Signed-off-by: Marc Véron <veron@veron.ch>
Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>
Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>