The new simple xls ex+import tool does not respect schedule column unit settings

when exporting the schedule to xls check the column setting if it is set to project units or overridden, if overridden use that unit base/setup instead.

Example Pipe Flow - GPM (gallon per min project unit) in a water heater schedule - GPH (gallon per hour) this means users have to preform math in excel or their head to preform unit conversions. This can lead to floating point math issues as well during unit conversions.