Ensure that "_localization" json object is nested in Start Form and Task Form Submission JSON objects

[StephenOTT]

Ensure that "_localization" json object is nested in Start Form and Task Form Submission JSON objects

Currently when you submit a Start Form or Task Form the _localization object which stores the data about what language the form was being presented in when the user submited is being stored as a top level process variable. the _localization object needs to be nested inside of the Start Form Data Object and the Task Form Data objects to ensure the process variable is not overridden on every submission.

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• Need to further research pattern for dealing with Multi-Instance Tasks (or sub-processes) and ensure there is a way to store the data about the instance.