Bug 5927: [Alternate] Show series information in staff and opac results pages

Bug 5927: [Alternate] Show series information in staff and opac results pages

This moves the series info to a template in the XSLT utils files and adds a
few variables to make it work right.

To test:
1 - Create a catalog records with:
    440 series fields
    490 traced series fields
    490 untraced series fields
2 - View the details pages for these records and note the display and the links formed
3 - Apply patch
4 - Confirm the details pages look the same
5 - Search on staff and opac to return the records
6 - Confirm the results pages form the same series as on details
7 - Confirm the links work the same

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