[Component architecture] Improve message for weakly causal cycle
Message in case of weakly causal cycle should provide some hint about what needs to be done (“you should make one component strongly causal - but think twice which one it is: this has an impact on the behaviour of your model - or add a delay in the feedback loop”)
(from redmine: issue id 2724, created on 2016-10-25, closed on 2016-12-19)