Generates a random reactionnet.ReactionNetwork from molecules that are strings of atoms and can join together or break apart.
Based on the paper Autocatalytic sets of proteins. 1986. Journal of Theoretical Biology 119:1-24 by Kauffman, Stuart A. but without the explicit catalytic activity.
Arguments:
Note
reactionnet.ReactionNetwork tracks molecules by their reactions, so if a molecule is not part of any reaction it will not appear at all e.g. in seen().