To test:
1. Apply patch, restart_all
2. Create a manual invoice for an item that has an item.itemcallnumber
3. Go to the transaction tab and see that the particualar accountline contains a callnumber in the new callnumber column.
4. Make sure you can hide the column, and other columns, correctly via Table settings or via the Column icon.
Signed off by: Michael Perry (Siskiyou County Library)
Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>
