Bug 26102: Prevent XSS when To.json is used: guarantor_search.tt

Bug 26102: Prevent XSS when To.json is used: guarantor_search.tt

To test, edit a patron record and go through the process of adding a
guarantor. In the guarantor search results table the address should be
displayed correctly.

Signed-off-by: Nick Clemens <nick@bywatersolutions.com>
Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>
(cherry picked from commit 11d0a05eb9f1a13c07f3c56d8e40dbbd1bc43938)
Signed-off-by: Victor Grousset/tuxayo <victor@tuxayo.net>