A major fix in simulation was done, side effect issue, an efficient
copyto! is implemented for LHA states. Automaton G works almost well, a bias in the distance is identified compared to Cosmos when one of the model parameters is zero. Implementation of volatile_simulate, which simulates SynchronizedModel without saving values: it only returns the last LHA state of the simulation. Implementation of distributed computations of variable automata with volatile_simulate. Tests passed.