[Feature]: Open up `optimizer_algorithm` to allow Optimization.jl methods

[Moelf]

Feature Request

Currently, optimizer_algorithm only supports Optim.jl stuff, it would be very powerful to support more methods from Optimization.jl ecosystem.

In particular, in cases where user takes the output from SR.jl and re-optimize on a new dataset, it is desirable the constant optimization uses the same optimizer as the post processing

[MilesCranmer]

Sounds good to me!

[MilesCranmer]

What's the right way to do this? Is there some central abstract interface for everything?