Bug 17052: Display patron category description in the sidebar of paycollect

Bug 17052: Display patron category description in the sidebar of paycollect

The patron category description is not passed to the template in
paycollect.pl

Note: The Categories TT plugin should be used here...

Test plan:
Go on paycollect.pl and confirm that the patron category description is
now displayed in the sidebar.

Signed-off-by: Owen Leonard <oleonard@myacpl.org>
Signed-off-by: Brendon Ford <brendon.ford@manhattan.edu>
Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>
(cherry picked from commit c3badb0c570beada485cc71ea6b494da1d59f1b0)
Signed-off-by: Frédéric Demians <f.demians@tamil.fr>