Bug 13709 - Patron cards creator utf-8 encoding and ttf fonts broken

Bug 13709 - Patron cards creator utf-8 encoding and ttf fonts broken

This change is similar to Bug 8375 which introduced ttf fonts for
labels printing in order to support diacritics and utf-8 encoding,
but this change was never implemented for patron cards.

Test scenario:

1. make sure that you have <ttf> font mapping in koha-conf.xml
2. define partron card layout, template, profile and batch
   (with utf-8 chars, probably in patron firstname or surname)
3. verify that without this patch pdf export file is error message
   Wide character in compress at /usr/share/perl5/PDF/Reuse.pm line 820
4. apply this patch and verify that generated pdf has correct encoding

Signed-off-by: Brendan Gallagher <brendan@bywatersolutions.com>
Signed-off-by: Jonathan Druart <jonathan.druart@biblibre.com>
Signed-off-by: Tomas Cohen Arazi <tomascohen@gmail.com>