Add ability to simulate ASHRAE 205 representations

[nealkruis]

Description

Currently limited to RS0004 (Unitary Air Conditioning). Added new test file 205Test.cse.

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[nealkruis]

@chipbarnaby, the test failures here are very puzzling to me. Here are the files that are failing:

	 34 - 1zattic.Regression (Failed)
	 36 - 1ZKiva.Regression (Failed)
	 38 - 2zattic.Regression (Failed)
	 48 - ashp_dfng.Regression (Failed)
	 68 - dhw_zone.Regression (Failed)

All of these except 48 have 0.01 differences in Nair in a handful of subhours. Here's the example report (I'm not sure what report this is part of):

================
Wed 10-Jul  hr=2 subhr=2
----------------

Z1 W:  mwIG=0.000  mwInf=0.000  mwAN=10.742  mwDuctLk=0.000  mwSys=0.000
     tdb=73.48  airX=3.673  dryAirMass=248.34  XLGain=0.00  W=0.011816  twb=61.89  rh=0.5489
Z1 CZ: anMCp/T[ 0]=74.75/5115.2  anMCp/T[ 1]=222.18/15204.4  ventUt=1
     Nair=2266427.52  Dair=30835.51  Nrad=108047.82  Drad=1470.49  CX=488.28  airX=3.673
     TH=64.88  TD=68.00  TC=74.12  qhCap=20000  qcCap=-34000
     ta=73.48  tr=73.48  qIzSh=-1121  fvent=1.000  pz0=-0.0034  qsHvac=0
Attic W:  mwIG=0.000  mwInf=0.000  mwAN=5.630  mwDuctLk=0.000  mwSys=0.000
     tdb=73.90  airX=9.748  dryAirMass=48.96  XLGain=0.00  W=0.011805  twb=62.00  rh=0.5406
Attic UZ: anMCp/T[ 0]=115.81/8191.6  anMCp/T[ 1]=116.25/8224.4  ventUt=0
     Nair=72568.96  Dair=1007.94  Nrad=70349.63  Drad=885.67  CX=569.44  airX=9.748
     ta=73.90  tr=77.27  qIzSh=-366  fvent=1.000  pz0=-0.0072  qsHvac=0

Test 48 is probably worth a call to go over. The test file has 5 separate runs where the meter reports for each run are identical, but the UDT reports have diffs for all except the last run.

[chipbarnaby]

I agree that the ashp_dfng changes are suspicious.