Bug 18915: Giving CHECKOUT_NOTE access to issues table

Bug 18915: Giving CHECKOUT_NOTE access to issues table

This patch allows the notice to reference the issues table so that the
checkout note itself can be added to the note if wanted, such as in
Comment 9.

Sponsored-by: Catalyst IT
Signed-off-by: Marjorie Barry-Vila <marjorie.barry-vila@collecto.ca>
https://bugs.koha-community.org/show_bug.cgi?id=19801

Signed-off-by: Marjorie Vila <marjorie.barry-vila@collecto.ca>
Signed-off-by: Marcel de Rooy <m.de.rooy@rijksmuseum.nl>
Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>