Bug 25690: Add SIP2 tests for checking out with holds

Bug 25690: Add SIP2 tests for checking out with holds

This should cover whether checking out is allowed for all different
hold states:

Attached:
 - Waiting
 - In processing
 - Transfer

Unattached:
 - Reserved

To test:
 1) prove t/db_dependent/SIP/Transaction.t => passes

Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>
Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>
Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>