Evolutionary solvers

[AlanRynne]

It would be nice to have some other numerical optimisation options other than GradientDescent.

An initial approach would be to do this one and then work from there.

Any other options would be welcome too!!

[AlanRynne]

@christiandimitri I added you here to coordinate anything related to this!

[d3ssy]

Just came across Paradigma 😁. We should definitely merge with G-Shark 😉.

If you're still looking for some reference for GA I made a super simple implementation to explain the concept of evolutionary solvers, but it is actually pretty extensible and works well.

https://github.com/d3ssy/SimpleGA