Bug 9806 : Add new columns to basket groups lists

Bug 9806 : Add new columns to basket groups lists

Revised to fix whitespace problems. Cosmetic changes put in an other patch.

In the list of all the open/closed basketgroups for a vendor, you just
have the name of each basketgroup, and 3 action buttons.
It is not sufficient for libraries using basketgroup.

This patch adds the following columns :
- number (id of basketgroup)
- billingplace (name of the library)
- deliveryplace (name of the library, or "free delivery place")
- number of baskets in each basketgroup

To test :
1) make some basketgroups with 0, 1, 2 baskets
2) make some basketgroups with different billing and deliveryplace
3) check the list of open and closed basketgroups
4) check action buttons are working like before

Signed-off-by: Owen Leonard <oleonard@myacpl.org>
This is a nice improvement!

Signed-off-by: Jonathan Druart <jonathan.druart@biblibre.com>
Signed-off-by: Galen Charlton <gmc@esilibrary.com>