Add 'Quit LabVIEW' conditional code when Main VI is running as a top-level EXE

[Darren]

The 'External Launch' module data for a DQMH module indicates whether or not the Main VI was started externally (True) or launched as a top-level VI (False). For the top-level VI case, the last thing that runs in your DQMH Module Main VI is the following:

I propose that we change the code to this:

When running a Main VI as a top-level EXE, it should have standard shutdown behavior.

[joerg.hampel]

Accepted for the next release of DQMH.