Improve the API Tester Status Control to have a more informative error description

[Ozfarmboy]

The below image comes from the Error Reported broadcast event case in the API Tester (as found in the default Singleton or Cloneable DQMH module templates):

This produces strings that look like this:

This could be improved by adding the "message" component of the error, by using the Simple Error Handler.vi.  Using the message makes the error report more descriptive, and doesn't rely on the user having to use "Explain Error" to review what the error code's could possibly be related to.

This produces strings that look like this:

 

Observe that the error message is now present in the text.

[mbaudot]

Issue #746 created