Michael Zingale

we have the core autodiff library merged and the screening functions currently use it. It is straightforward to extend to other things now.

we have chem_eos_t for this now

this is done now that we've switched to the templated RHS

okay, this builds and seems to work once again.

I was able to integrate both a pynucastro net and an aprox net with this integrator

I think that for now, the only way we are going to do this is with the tabular NSE solver.

depends on #2726 fixes #2724

this is ready for review now

https://github.com/apps/welcome

We will need to separately do the same for Microphysics, but we can do that after this.