Send Supplier Attachments from Sourcing Events to Contracts

For Sourcing Events that have lines with Contract output, Supplier response attachments and question answer attachments can create comments with attachments in Contract Management. Supplier Attachments, when created, will be flagged to go to Contract Management, and can be changed at Award time if desired. Comments with these attachments will be created in Contract Management when Create Output is done, and will have a new comment type to indicate they came from Sourcing.