Update POL table columns

Purpose: some information from purchase order lines is important enough to show in the result list and some is not.

Acceptance criteria:
The following headings and their associated field information appear in the POL table on a PO: (Left to right)

• POL Number (Default sort by this number)
• Title
• Product ID
• Vendor ref number
• Fund Code (comma separated list is fine for multiple)
  *Support only default sorting for now.

Note: No other headings/info should show in this table