Set nominal and start values in media.

This is for https://github.com/iea-annex60/modelica-annex60/issues/95
Set nominal and start values in media.

This is for https://github.com/iea-annex60/modelica-annex60/issues/95
Set nominal and start values in media.

This is for https://github.com/iea-annex60/modelica-annex60/issues/95