feat: allow `NonlinearSystem(::ODESystem)` and `NonlinearProblem(::ODESystem)`#3440

ChrisRackauckas merged 3 commits intoSciML:masterSciML/ModelingToolkit.jl:masterfrom

AayushSabharwal:as/ode-to-nonlinearAayushSabharwal/ModelingToolkit.jl:as/ode-to-nonlinearCopy head branch name to clipboard