calulate phase boundary property record from dimensionless Gibbs function
function gibbsToBoundaryProps3rd extends Modelica.Icons.Function; input ThermoSysPro.Properties.WaterSteam.Common.GibbsDerivs3rd g "dimensionless derivatives of Gibbs function"; output ThermoSysPro.Properties.WaterSteam.Common.PhaseBoundaryProperties3rd sat "phase boundary properties"; end gibbsToBoundaryProps3rd;