Annex60 sync

This address https://github.com/iea-annex60/modelica-annex60/issues/95 (alias set with different nominal values).
It also adds a few other changes that are needed for OpenModelica, such as 
* an increase in the solver tolerance to avoid an assert to be triggered, and 
* a reformulation of `Buildings.Utilities.Psychrometrics.Functions.BaseClasses.TDewPoi_pW_amb` and `Buildings.Utilities.Psychrometrics.Functions.BaseClasses.pW_TDewPoi_amb` to circumvent a limitation in the OpenModelica parser.