Allow user to choose (irregularly-spaced) integration points

[Jacob-Stevens-Haas]

Thanks for your work with this package!

I'm hoping to generate some data to test out a collocation approach using different choices of points, which means integrating the ODE and evaluating at irregularly spaced points. It's common in integration methods to allow the user to choose the points to evaluate the solution. E.g. solve_ivp's parameter t_eval.

Desired

It would be great if DynSys.make_trajectory() could handle t_eval.

Alternative

User finds highest dt that divides all their evaluation times, oversamples using make_trajectory(), then determines the indices to thin out to the desired evaluation times.

[williamgilpin]

@Jacob-Stevens-Haas thanks, I think we can add this. I'm thinking the easiest way would be to just add a kwarg dict that gets passed on to solve_ivp. We'll need to add an exception handler for the stochastic integration, but I don't think that many people are using the noise options. I'll discuss with the team to see if there's any other side effects

For now, since the ODEs are callable, you can pass them directly to solve_ivp, but that wouldn't do the resampling and normalization, which isn't ideal.