Bug 24620: Close existing transfers when setting item to waiting

Bug 24620: Close existing transfers when setting item to waiting

This patch adds a clause in ModReserveAffect to check if there
are existing transfers and close them when setting a hold to waiting

To test:
 1 - Set AutomaticItemReturn to Do
 2 - Checkin an item from Library B at Library A
 3 - Confirm item is in transfer (check the details page)
 4 - Place a item level hold for pickup at library A
 5 - Checkin the item at Library A
 6 - Confirm the hold
 7 - View the details page
 8 - Note the item is in transit and waiting
 9 - Apply patch
10 - Delete hold and repeat
11 - Confirm that transfer is closed when hold marked waiting

Signed-off-by: Sally <sally.healey@cheshirewestandchester.gov.uk>
Signed-off-by: Stina Hallin <stina.hallin@ub.lu.se>
Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>