GPU Ensemble problem

[hexaeder]

Would be nice to make NetworkDynamics GPUEnseble compatible. For that we need to move the entire Network object to a kernel. Problematic bits are probably the DiffCaches because of untyped any field.

We also need to strip a lot of metadata. I think we would have something like strip_metadata(::Network)::NetworkCore which gets rid of all the IndexManager and so on and just leaves the parts necessary for the coreloop