Bug 21983: Make DelBiblio update linked ILL requests

Bug 21983: Make DelBiblio update linked ILL requests

This patch makes DelBiblio update the biblio linked ILL requests so the
value in biblio_id is moved to the deleted_biblio_id.

The change is covered by tests.

To test:
1. Apply this patchset
2. Run:
   $ ktd --shell
  k$ updatedatabase
  k$ qa --run-tests
=> SUCCESS: Tests pass! All green/good
3. Sign off :-D

Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>
Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>
Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>