Fix tests failing and implement missing stuff

[Toddelismyname]

Current Examples are failing

We will try to fix the tests failing by adjusting the code in the backend to for example include preset values of the topology does not provide one

Subtasks

• [ ] Find out what the examples in the controller repo are from the precice website ?
• [ ] #7
• [ ] Add custom examples and/or make sure the tutorial cases work as intended

Dependencies This task depends on #6 to be finished