This patch adds the datelastseen column to the holdings table and also makes it column configurable.
To Test:
-Apply patch and have a look at some item records.
-Notice the datalastseen column
-Make sure it wroks and its displaying the datelastseen correctly
-Go to the column configuration tools and make sure you can properly hide this column.
Signed-off-by: Sally <sally.healey@cheshiresharedservices.gov.uk>
Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>
