Compare with David Zhang's RungeKuttaToolKit.jl and RKTK

[ranocha]

It would be nice to compare some functionality and document possible interoperability with these packages:

https://github.com/dzhang314/RungeKuttaToolKit.jl

RungeKuttaToolKit.jl is a Julia package that provides tools for constructing and analyzing Runge–Kutta methods. It includes optimized, SIMD-accelerated code for enumerating rooted trees, building instruction tables, and computing Butcher weights and their derivatives.

https://github.com/dzhang314/rktk

RKTK (Runge–Kutta toolkit) is a collection of scripts and tools, written in the Julia programming language, for discovering and optimizing new Runge–Kutta methods. This software powered my discovery of the first explicit 10th-order Runge–Kutta method with 16 stages, as described in my undergraduate thesis, marking the first advance in over 40 years since Ernst Hairer's discovery of a method with 17 stages in 1978.