Bug 14048: Add a refund rules setting form in smart-rules

Bug 14048: Add a refund rules setting form in smart-rules

This patch introduces the CRUD UI for managing the refund lost item fee
rules on the general 'Circulation and fines rules' page.

Verify that rules can be added and changed.

Rules are correctly associated to the chosen branch (or the
general default rule).

To test:
- Apply the patch
- Open smart-rules.pl
=> SUCCESS: The text and refund rules section correctly refers to default global rules.
   The policy can be set to Yes and No, and works as expected.
- Pick a specific branch
=> SUCCESS: The rule refers to the specific branch
=> SUCCESS: It detects the default rule is picked
=> SUCCESS: On changing the rules values are correctly retrieved if entering
   again to the page.
=> SUCCESS: The 'Use default' text is suffixed with the correct value set by the user
   in the 'All libraries' scenario.
=> Sign off :-D

Sponsored-by: DoverNet
Sponsored-by: South-East Kansas Library System
Sponsored-by: SWITCH Library Consortium
Signed-off-by: Nick Clemens <nick@bywatersolutions.com>
Signed-off-by: Jason Robb <jrobb@sekls.org>
Signed-off-by: Jennifer Schmidt <jschmidt@switchinc.org>
Signed-off-by: Margaret Thrasher <p.thrasher@dover.nh.gov>
Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>
Signed-off-by: Jesse Weaver <jweaver@bywatersolutions.com>