Bug 20400: Add routing list tab in OPAC

Bug 20400: Add routing list tab in OPAC

This patch adds the base for the new feature:
Show a list of the serial titles a patron is on routing
lists for in the OPAC.

Test plan applies to the complete patch set:

To test:
- Apply all patches
- Make sure RoutingSerials is not activated
- Check patron account in OPAC - no tab should appear
- Activate RoutingSerials
- Create subscriptions and different routing lists, test with:
  - Patron with no routing list entries = no tab
  - Patron with one or more routing list entries = tab appears

Signed-off-by: Dilan Johnpullé <dilan@calyx.net.au>
Signed-off-by: Nick Clemens <nick@bywatersolutions.com>
Bug 20400: Rewrite using Koha::Objects

Adds
- Koha::Subscription::Routinglist
- Koha::Subscription::Routinglists

Adds 2 methods
- Koha::Patron::get_routinglists
- Koha::Routinglist::subscription

Signed-off-by: Dilan Johnpullé <dilan@calyx.net.au>
Signed-off-by: Nick Clemens <nick@bywatersolutions.com>
Bug 20400: Add unit tests

prove t/db_dependent/Koha/Subscription/Routinglists.t
prove t/db_dependent/Koha/Patrons.t

Signed-off-by: Dilan Johnpullé <dilan@calyx.net.au>
Signed-off-by: Nick Clemens <nick@bywatersolutions.com>
Bug 20400: Display new tab in OPAC only for patrons with routing lists

The visibility of the routing list tab in the OPAC depends
on the system preference RoutingSerials and the existence
of routing list entries for the patron.

Some libraries only offer routing lists to certain user groups and
would not want it generally visible. As there are currently no
actions you can perform from the list, this appears to be a
reasonable behaviour.

See test plan in first patch.

Signed-off-by: Dilan Johnpullé <dilan@calyx.net.au>
Signed-off-by: Nick Clemens <nick@bywatersolutions.com>
Bug 20400: (follow-up) Use Asset TT plugin on opac-routing-lists.tt

Patch applies and functions as described.
Signed-off-by: Dilan Johnpullé <dilan@calyx.net.au>
Signed-off-by: Nick Clemens <nick@bywatersolutions.com>
Bug 20400: (QA follow-up) Redirect to 404 if routing is disabled

Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>