Bug 13918 - Add waiting expiration date to opac list of holds for user

Bug 13918 - Add waiting expiration date to opac list of holds for user

Waiting holds for patrons in the opac should display the hold expiration
date based on the max pickup delay if it is set.

Test Plan:
1) Ensure ReservesMaxPickUpDelay is set
2) Place a hold on a record
3) Check in the item, use it to fill the hold
4) Log into the opac as that user
5) View the holds list, note the 'until <date>' addition to the
   waiting hold line.

Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>
Signed-off-by: Cathi Wiggins <CWIGGINS@ci.arcadia.ca.us>
Signed-off-by: Megan Wianecki <mwianecki@mplmain.mtpl.org>
Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>
Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>