Bug 28229: Only show clubs on request.tt if clubs exist

Bug 28229: Only show clubs on request.tt if clubs exist

1. Have no existing clubs
2. Apply patch
3. Go to request.tt and you will not see the club tab or any mention of clubs
4. Create at least 1 club
5. Go back to request.tt and now see the tab for clubs
6. Make sure you can place holds as an individual with and without clubs.
7. Make sure you can place holds for clubs.
8. rejoice and sign-off

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