Feature - Add Estimated Assessment Rating

[fhilipk]

As a proposer I'd like to see the "Total Estimated Assessment Rating".

Add an element called "Total Estimated Assessment Rating*" that calculates the average of the scores provided.

Add notice "*This rating is a calculated from the present assessments prior to final QA. Score may differ from final."

Problem: in the interface multiple proposals can be selected. If, then show notice "Multiple proposals selected, select one to see total rating".

[fhilipk]

Suggested placement of new element.