Bug 8567: Set output directory for fines.pl in cron config created by the packages

Bug 8567: Set output directory for fines.pl in cron config created by the packages

Modified debian/koha-common.cron.daily adding instance output dir option to
the fines.pl entry as described in the ticket.

Requires patch from Bug 8566 which provides the __instancename__ feature for
koha-foreach.

Signed-off-by: Chris Cormack <chris@bigballofwax.co.nz>
Signed-off-by: Robin Sheat <robin@catalyst.net.nz>
Signed-off-by: Tomas Cohen Arazi <tomascohen@gmail.com>