Bug 26280: Add unique class for each problem in returns.tt

Bug 26280: Add unique class for each problem in returns.tt

1. Checkin an item with a bad barcode and see the prolem class also has
   a class called 'ret_badbarcode'
2. Checkin an item that triggers a lotforloan updated via
   UpdateNotForLoanStatusOnCheckin, notice the class 'ret_nflupdate'.
3. You should also see an updated_from and updated_to class. This
   should make it easier to target those for audio alerts
4. Checkin an item that triggers an location update and see the class
   'ret_locationupdate'
5. Checkin an item that is not at its permenat location and you should
   see the class 'ret_ispermenant'.
6. Checkin an item that is not checkout and you should see the class
   'ret_notissued'
7. Checkin lost items with BlockReturnOfLostItems set to 'Dont block'
   and see the class 'ret_checkedin'
8. Checkin lost items with BlockReturnOfLostItems set to 'block' and
   see the class 'ret_blocked'
9. Checkin lost items with a fee on the patron's account for that lost
   item and see the class 'ret_feeremains'
10. Checkin item that is withdrawn and see the class 'ret_withdrawn'

Signed-off-by: Owen Leonard <oleonard@myacpl.org>
Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>