Add carrier to shipment list view

It may be useful to user to filter the shipments per carrier. For example some carrier will pickup products earlier so their shipments must be packed first.

assigned to @ced

added sales type::feature + 1 deleted label

added 1 deleted label and removed 1 deleted label

review323031002 updated at https://codereview.tryton.org/323031002/#ps324771002

New changeset 8f33a6161c08 by Cédric Krier in branch 'default':
Add carrier on shipment list view
https://hg.tryton.org/modules/sale_shipment_cost/rev/8f33a6161c08

added 1 deleted label and removed 1 deleted label

closed

New changeset 10505be2b692 by Cédric Krier in branch 'default':
Add carrier on shipment list view
https://hg.tryton.org/tryton-env/rev/10505be2b692