Simplify QuestionCollections containing boolean single-choice sub-questions to normal multiple choice Questions

Simplify aggregated QuestionCollections with sub-questions with boolean data / given answers and convert them to / process them as "normal" Questions with string data. That means, aggregated multiple choice QuestionCollections containing boolean single choice Questions might be representable as and converted to multiple choice "normal" Questions.

Edited May 06, 2020 by Hueser, Christian

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