Refactored Substrate to possibly use different coordinates; added secondBestGenome; added some unity debug statements to find bugs; made NeatParameters serializable so it could be shown in unity editor; commented out activationProbabilities; HyperNeatParameters loading of "params.txt" is tricky.  Writing a log message about it--should probably be removed and not sneakily get info from filesystem.  Added IEvaluator, not sure threadSafeEvaluate is necessary, seems like an implementation detail; added PairEvaluator for co-evolutionary setups; added delegate for genomeDecoding (also considering having an IGenomeEvaluator along with INetworkEvaluator but the delegate seems like all I really need). Added DotGraph generation for FloatFastConcurrentNetwork.