100x performance increase with Griffeath!

configurations/Griffeath/large_random.json

configurations/Griffeath/spins.json

include/alphabet.hpp

include/gridview.hpp

include/mathexpr.hpp

include/state.hpp

include/transition_rules/nonisotropictransition.hpp

include/transition_rules/totalistictransition.hpp

patterns/Griffeath/Spin.json

src/alphabet.cpp

src/automaton.cpp

src/gridview.cpp

src/mathexpr.cpp

src/neighborhood_rules/mooreNeighborhoodRule.cpp

src/simulation.cpp

src/transition_rules/nonisotropictransition.cpp

src/transition_rules/totalistictransition.cpp

tests/totalistictransition_test.cpp