SDE `EnsembleProblem` unhappy with `trajectories>=2`?

[ChrisRackauckas]

@Krastanov

Thanks! Could you provide the idiomatic way to create a new noise per problem? I have a few silly ways to do it, but I would like to make a PR to add the correct one to the documentation

Make it as part of the prob func and add noise=.to the created prob there