Bug 29002: Add bookings view

Bug 29002: Add bookings view

This patch adds a new view to the biblio details page to display any
bookings that may have been made.

Test plan
1) Run through the steps from the previous patch
2) Note the appearance of a new 'Bookings' option in the left menu
3) Click the bookings option to load the new bookings page for the
   biblio
4) See that the booking from the previous patch appears on the page
5) Sign off

Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>
Signed-off-by: Janet McGowan <janet.mcgowan@ptfs-europe.com>
Signed-off-by: Caroline Cyr La Rose <caroline.cyr-la-rose@inlibro.com>
Signed-off-by: Laurence Rault <laurence.rault@biblibre.com>
Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>
Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>