Retrieving question groups

Endpoint	Description
/question_groups	Retrieves a list of all question groups
/question_groups?surveyId=<id>	Retrieve a list of question groups by survey id

A question group contains the following data:

Field	Description	Type
question_groups.name	The name of the question group	String
question_groups.path		String
question_groups.displayName	The name of the question group as shown on screen	String
question_groups.description	Question group description	String
question_groups.code		String
question_groups.questionMap
question_groups.surveyId		Integer
question_groups.order		Integer
question_groups.keyId	Question group id	Integer