Support NumPy arrays in Simulation

It would be neat if NumPy arrays were supported.

Also, an argument to get NumPy array results would be nice. (Or a different property.)

added Simulation label

https://stackoverflow.com/questions/62970581/what-exactly-is-a-sequence

Maybe preprocess input as np.atleast1d(np.squeeze(np.asarray(...)))?

changed milestone to %Autumn version

Turns out that it actually works, just that the dimensions must be correct. Maybe one should warn/error on incorrect dimensions?