Bug 18958: (follow-up) Ensure hold fill target reserve_id is set for all hold types

Bug 18958: (follow-up) Ensure hold fill target reserve_id is set for all hold types

MapItemsToHoldRequests has three sections: Local holds, item level holds, bib level holds

Only one of them was setting the reserve_id. This patch makes al three set it and adds tests

To test:
1 - Repeat test plan on bug
2 - sudo koha-mysql kohadev
    SELECT * FROM hold_fill_targets
3 - Ensure reserve_id is set at appropriate times
4 - prove -v  t/db_dependent/HoldsQueue.t

Signed-off-by: Marcel de Rooy <m.de.rooy@rijksmuseum.nl>
Bug 18958: (QA follow-up) Fix number of tests

In HoldsQueue.t

Signed-off-by: Marcel de Rooy <m.de.rooy@rijksmuseum.nl>
Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>
Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>