Generated C++ Get/Set Methods

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For C++, methods are generated to assist the user in getting, setting, or querying the choice construct variable. These methods are of the form get_elemName, set_elemName, and is_elemName where elemName would be replaced with the name of the element. The get method will return a pointer to the choice item only if it is the selected item; otherwise it will return null. The is method returns a boolean value of true if the element is the selected element or false otherwise. The set method sets the element to the given value and selects it by setting the t value.