Fixed create_harmonic_sum_decision to use injected threshold and buffering decoders.
Fixed create_harmonic_sum_decision to use injected threshold and buffering
decoders.

NeuralProsthesisLab/unlock,NeuralProsthesisLab/unlock,NeuralProsthesisLab/unlock,NeuralProsthesisLab/unlock,NeuralProsthesisLab/unlock,NeuralProsthesisLab/unlock,NeuralProsthesisLab/unlock