Bug 18184: Show frequency and numbering pattern info when viewing all subs attached...

Bug 18184: Show frequency and numbering pattern info when viewing all subs attached to a biblio

To test:
1) Go to Serials, find a serial with more than one subscription
2) Click Serial collection
3) Notice how Frequency and Numbering pattern are filled out correctly
4) Click 'see any sub attached to this biblio'
5) Notice how Frequency and Numbering pattern are now missing info
6) Apply patch and refresh page
7) Confirm Frequency and Numbering pattern now show as expected

Sponsored-by: Catalyst IT
Signed-off-by: sonia BOUIS <sonia.bouis@univ-lyon3.fr>
Signed-off-by: Nick Clemens <nick@bywatersolutions.com>
Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>