Bug 28369: (QA follow-up) Restore PUT with deprecation message

Bug 28369: (QA follow-up) Restore PUT with deprecation message

This patch restores the PUT route, but adding a deprecation message. The
controller method is the same, and relevant patch tests are duplicated
but calling PUT, so it still gets tested.

To test:
1. Apply this patch
2. Reload plack
3. Open https://<>/api/v1/.html and find the PUT /holds/{hold_id} route
=> SUCCESS: There's a deprecation wargning!
4. Run:
   $ kshell
  k$ prove t/db_dependent/api/v1/holds.t
=> SUCCESS: Tests pass!
5. Sign off :-D

Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>
Signed-off-by: David Nind <david@davidnind.com>
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>
Signed-off-by: Joonas Kylmälä <joonas.kylmala@helsinki.fi>
Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>