Added some initialization for a few variables to fix the issue of integer overflow when calculating the amount of memory to allocate
Merge branch 'develop' of https://github.com/NREL/EnergyPlus into 82126196-HVACDiagramCrash
Merge pull request #4616 from NREL/82126196-HVACDiagramCrash

HVACDiagram-Added some initialization for a few variables to fix the issue of intege...