Stopping Rule Class

[PeterLombaers]

Feature Request

Is your feature request related to a problem? Please describe.
In simulation mode, when the simulation stops is based on arguments passed via the command line. The code is here.
It would be nice to have a class that implements the stopping rule, so that you can also make your own custom stopping rule plugin. This would allow simulating different stopping rules and comparing the performance.

Describe the solution you'd like
A class that implements a stop_review method which gets called at the end of every iteration of the simulation. You should be able to plug in a custom stopping rule class, similar to how you can plug in a model class.

[Jonathan de Bruin]

Nice idea. A new entry point can be a nice solution. Any ideas on the design of this class?

[Rens van de schoot]

Great idea!! This will open-up many new research directions!

linked to #557