addedSplitterThermPercentAir for distribution of solar and inner radiative loads
new extending model improvedLowOrderModel and some minor work on partialLOM and ReducedOrderModel, #24
finished work on improved LOM, #24
added equal air temperature for improved LOM >WindowEqAirTemp<, slight changes in partialEqAirTemp,#24
added simple example for testing the improvedLOM,#24