Migrate simulation tooling from Petri.jl

[bosonbaas]

The simulation tooling available in Petri.jl should be able to be migrated into AlgebraicPetri.jl, removing the need for dependence on Petri.jl.

[bosonbaas]

I understand that AlgebraicPetri doesn't want explicit dependence on heavy libraries like OrdinaryDiffEq, do we want to move the Petri.jl tooling over inside a series of @require statements?
I'd see there being an @require statement for each of these following lines:

import OrdinaryDiffEq: ODEProblem
import SteadyStateDiffEq: SteadyStateProblem
import StochasticDiffEq: SDEProblem
import DiffEqJump: JumpProblem

How does this sound @mehalter ?