Bug 17877: Add columns settings to the orders table on subscription-detail

Bug 17877: Add columns settings to the orders table on subscription-detail

Test plan:
- Apply this patch and make sure to restart memcached (to re-read the yaml
file that is cached)
- Go to Home › Administration › Columns settings
- Confirm that a new "Serials" tab contain the different columns of the
"Acquisition details" table displayed on the subscription detail page
(if an order exist for this subscription)
- Play with it
- Go to Home › Serials › Details for subscription #ID
- Confirm that the "Column visibility" button is now displayed on top of
the table that it works correctly.

Signed-off-by: Séverine QUEUNE <severine.queune@bulac.fr>

Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>

Signed-off-by: Nick Clemens <nick@bywatersolutions.com>