sciml

The basics of DiscreteSystem exists now, but the little details around it need to be finished.

add in docs and in testset a Low-level API example with GPU

The package currently exports these function names:
mm , mmr , hill , hillr , hillar.

To avoid these potentially overwriting other stuff people have decalred, they could be moved to some other sub package. They would then be imported using e.g.

using Catalyst.Functions