Performance Tuning with Bug Fixes
* Performance tuning using 5ZoneWarmest (annualized):
  * This is a fast (12 sec) case so input processing dominates time
  * Tuning mostly centered on reducing heap allocations as they dominated
  * 20% speedup achieved: Should benefit many fast cases
  * Now faster than Fortran
* Bugs in arg passing to CalcAirFlowSimple function fixed
* CalcAirFlowSimple performance and format reversions corrected