Bug 13640: Do not display unreserveable items on the Holds to pull screen

Bug 13640: Do not display unreserveable items on the Holds to pull screen

We should only display the items that meet the hold policies

Test plan:
It would be good to have a huge list of holds displayed on the "Holds to
pull" and confirm that the display is now correct.

One of the possible test plan has been let in a comment on the bug
report:
Bib Record A has 2 items:

Item Record X (can be placed on hold)
Item Record Y (cannot be placed on hold)

If you place a bib-level hold on Bib Record A, both Item Record X and
Item Record Y show up as available items in the Holds To Pull List.

With this patch applied you must not see Y

Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>
Signed-off-by: Marcel de Rooy <m.de.rooy@rijksmuseum.nl>
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>