evaluated some common variables in SimInfoManager instead of in each instance of windows and walls:
hcon and Tsky
moved more common calculations into SimInfoManager and removed in-between model 'globalproperties'
moved more common calculations for solar irradiation in solDifTil to PartialSimInfoManager
remvoed GlobalProperties component
changed some algorithm sections into equations since the algorithm did not provide any added value
Merge branch 'Annex60' into issue152_groupedEnvironmentCalculations
accepted updated reference results for BesTest
the different results were caused by using a spliceFunction for the evaluation of hCon
converted the algorithm in SkyBrightnessCoefficients into an equations section
Merge pull request #158 from open-ideas/issue152_groupedEnvironmentCalculations

Grouped environment variable calculations