Add ForwardTranslate and fix build error

Adds ForwardTranslate for:

Refrigeration:Case
Refrigeration:Compressor
Refrigeration:Condenser:AirCooled
Refrigeration:System

This also fixes a build error in RefrigerationCase related to
ThermalZone.
Change OpenStudio.idd, refrigeration constructors, dataset

Change the RefrigerationSystem fluid type field to choice instead of
object-list. These choices are limited to the refrigerant data included
with EnergyPlus.

Add fluid properties idfObjects to forwardTranslateRefrigerationSystem
based on fluid choice.

Add R11 refrigerant dataset for use by forward translator. More
datasets for all refrigerant choices will follow.