Bug 7736 Add Edifact order fields to Acquisition.t

 Bug 7736 Add Edifact order fields to Acquisition.t

Modification in Acquisition.t to support in test the new fields
of the table aqorders:
line_item_id, suppliers_reference_number,
suppliers_reference_qualifier, suppliers_report

Original patch by Zeno Tajoli
I amended to include the report field (ColinC)

Signed-off-by: Paul Johnson <p.johnson@staffs.ac.uk>
Signed-off-by: Sally Healey <sally.healey@cheshiresharedservices.gov.uk>
Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>
Signed-off-by: Brendan A Gallagher <brendan@bywatersolutions.com>