Bug 30780: Librarians with only "place_holds" permissions can not update holds data...

Bug 30780: Librarians with only "place_holds" permissions can not update holds data via REST API

This patch enables librarians with only "place_holds" permissions to cancel, suspend and resume holds via REST API.

Test plan:
1) Try to cancel or suspend a hold with only "place_holds" permissions
2) See that it is forbidden.
3) Apply the patch
4) Cancel a hold again
5) The cancellation succeeds
6) prove t/db_dependent/api/v1/holds.t

Sponsored-by: Koha-Suomi Oy
Signed-off-by: David Nind <david@davidnind.com>
Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>
Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>