Bug 16894: Regression - Display email on patron search results

Bug 16894: Regression - Display email on patron search results

Bug 10318 added the email to the patron search results but it has been
removed later.
This patch reintroduced it where it was (no new column).

Test plan:
Search for patrons and confirm that the emails are displayed.

Signed-off-by: Owen Leonard <oleonard@myacpl.org>
Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>
(cherry picked from commit 034f939a44287ae7078d95c15b55368aa98b4216)
Signed-off-by: Frédéric Demians <f.demians@tamil.fr>