Update Run Manager

[thomasckng]

Run manager works with the new framework now

[thomasckng]

We can add other features later on

[ThibeauWouters]

This looks good to me. I checked the tests and example and found no errors. Indeed there are places where we might want to improve how the runmanager handles things, but we'll leave that to future work. It's good to have an up-to-date runmanager first.