[#55181370] Add source files, GTest, Forward translator for chilled beam ( AirTerminalSingleDuctConstantVolumeCooledBeam , CoilCoolingCooledBeam )
[#55181370] from Xia: Changed coolingcoil object to HVACComponent. Added icons image library and containingStraightComponent to HVACComponent files to accomodate the separate coil.
[#55181370] From Xia: Fixes to ForwardTranslateAirTerminalSingleDuctConstantVolumeCooledBeam.cpp, ForwardTranslatePlantLoop.cpp.
revised hvac_library.osm. Fixed override errors in last commit.
fixes a typo preventing fwd translation of chilled beams
[#55181370] Fixes to add airdistributionunit into EnergyPlus.
[#55181370] fixes fwd translation of air dist unit into branchlist
[#55181370] removes code used for debugging
[#55181370] Added names for airterminalcooledbeam and ZoneHVAC:AirDistributionUnit to avoid random computer handles.
Merge branch 'develop' into ChilledBeam

Conflicts:
	openstudiocore/resources/model/OpenStudio.idd
	openstudiocore/src/energyplus/ForwardTranslator/ForwardTranslatePlantLoop.cpp
	openstudiocore/src/openstudio_app/Resources/hvaclibrary/hvac_library.osm
	openstudiocore/src/openstudio_lib/openstudio.qrc
removes extraneous objects from hvac_library.osm
adds icons and fixes hvac library [#55181370]
removes tests for unused icons.  resolves #400
Merge pull request #488 from xfang123/ChilledBeam

adds Chilled beams, icons for radiant systems, and fixes the icon library test failure.