Calculate summary information for PO and PO Line

Once a new order with one or a few PO Lines created, the following information should be calculated:

• PO Summary:
  
  As can be seen the following info is missing:

  Field	Expected value
  Total Units	Sum of Physical and Electronic Quantity values of the all PO Lines from Cost Details
  Total Estimated Price	Sum of all Estimated Price values of the all PO Lines from Cost Details

• PO Line Cost Details
  
  Missing information:

  Field	Expected value
  Estimated Price	List Unit Price multiplied by Quantity Ordered

• Adjutments
  Adjustment for each POL should roll up to totals at the purchase order level

Note: According to Acquisitions Interface Fields document none of these fields are searchable/filterable. This means the information should be recalculated all the time when order/line is being retrieved.