[Task] Flowchart (PAP)

[mikebarkmin]

Flowchart (in German Programablaufplan PAP) are very common in schools. I think it would be great to have this task format in Bitflow. One problem which we have with all modelling task format is, how can we evaluate the answer of a student. This is the same for this task format. Maybe we need to close it down a bit. For example, by using select fields for the names of the nodes instead of letting the students freely choose a name.

Additional links:

• https://en.wikipedia.org/wiki/Flowchart
• http://sape.inf.usi.ch/informa/problem-types/graph