Bug 21364: Allow closing basket from vendor view/search

Bug 21364: Allow closing basket from vendor view/search

To test:
1 - Have a vendor
2 - Add some empty baskets
3 - Add some non-empty baskets
4 - Search for vendor and note you now
    a - Can only 'View' empty or closed baskets
    b - Have a dropup menu to 'Add to ' or 'Close' open baskets
5 - Confirm things look correct and buttons work
6 - Confirm that basket name is now a link to view basket

Signed-off-by: Owen Leonard <oleonard@myacpl.org>
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>
Signed-off-by: Claire Gravely <claire.gravely@bsz-bw.de>
Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Nick Clemens <nick@bywatersolutions.com>