Bug 20341: Show authorized value description for withdrawn like damaged and lost

Bug 20341: Show authorized value description for withdrawn like damaged and lost

Actually catalog detail page shows for damaged and lost items the authorized value description if exists.
We must do the same for withdrawn information.

Test plan :
1) Set for items a subfield linked to items.withdrawn and using the authorized value category 'WITHDRAWN'
2) Edit the authorized value category to add value '2' and description 'Eaten by dog'
3) Edit an item to set this withdrawn value
4) Go to staff interface and look at items in record detail page /cgi-bin/koh/catalogue/detail.pl :
=> Without patch you see 'Withdrawn' and with patch you see 'Eaten by dog'
5) Go to OPAc and look at items in record detail page /cgi-bin/koha/opac-detail.pl :
=> Without patch you see 'Withdrawn' and with patch you see 'Eaten by dog'

Signed-off-by: delaye <stephane.delaye@biblibre.com>
Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>
Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>