try statement inside userInputValidityFunctions.py

[AdityaSavara]

try:
    SettingsVDictionary['referenceCorrectionCoefficients_cov']    = UserChoices['measuredReferenceYorN']['referenceCorrectionCoefficients_cov']
except:
    SettingsVDictionary['referenceCorrectionCoefficients_cov']    = [0,0,0] #TODO: This is to keep some old unit tests running. Ideally they should be fixed.

The way to solve this would be to define the variable referenceCorrectionCoefficients_cov in all of the unit tests. But this will never be worth the lead developer's trouble to do.