runner.getArgumentValues does not honor argument data type

[shorowit]

Issue overview

Very simple OSW to demonstrate the issue:
test.zip

Run it w/ OpenStudio 3.8 as follows:
openstudio run -m -w test.osw

It will print out {:double_value=>40} instead of {:double_value=>40.0}. This caused a bug in our software because we ended up doing integer division instead of float division. Since the argument is of type Double, runner.getArgumentValues should be able to return the value as a double, right?

(Also, I'm seeing that val=1 is being output when I use the run -m flag. Maybe some debug code in OS that wasn't removed?)

@joseph-robertson @jmarrec

[DavidGoldwasser]

I may be seeing that in one of the measures in NREL/openstudio-calibration-gem#66

So I guess a question is putting in 3.8.0. Is this low risk and easy enough to fix today to put in release package tomorrow, or if there is a work around to bypass the issue, do we wait.

[jmarrec]

MCVE

arg = OpenStudio::Measure::OSArgument::makeDoubleArgument("double", true)
arg.setValue(10.0)

arg.valueAsJSON
=> 10
arg.valueAsJSON.class
=> Integer