Z automata merge
ZAutomata auxiliary algorithms and various simplifications and improvements.
Main changes: EpsilonNFTA datatype and its conversion to NFTA, RTE to EpsilonNFTA algorithm, minimization and reduction of ZAutomata.
ZAutomata auxiliary algorithms and various simplifications and improvements.
Main changes: EpsilonNFTA datatype and its conversion to NFTA, RTE to EpsilonNFTA algorithm, minimization and reduction of ZAutomata.