createStochSystem: Creates a stochastic system from an in silico system.
In sismonr: Simulation of in Silico Multi-Omic Networks

Creates a list of molecules, reactions and associated propensities to represent the in silico system.

createStochSystem(
  insilicosystem,
  writefile = F,
  filepath = NULL,
  filename = "simulation",
  verbose = T,
  ev = getJuliaEvaluator()
)

`insilicosystem`	The in silico system (object of class `insilicosystem`, see `createInSilicoSystem`).
`writefile`	Does the julia function write the species and reactions lists in a text file?
`filepath`	If writefile = `TRUE`, path to the folder in which the files will be created (default: current working directory).
`filename`	If writefile = `TRUE`, prefix of the files created to store the lists of species and reactions (default: none).
`verbose`	If TRUE (default), print messages to signal the start and finish of the function.
`ev`	A Julia evaluator (for the XRJulia). If none provided select the current evaluator or create one if no evaluator exists.