OscilloscopeModule

[killbizz]

• Add an algorithm to syncronize the redrawing in the drow::AudioOscilloscope in order to only update waveform data when the internal graphic buffer is full, as opposed to in real-time. In other words, this allows to slow down how often the display refreshes, finding the right drawing speed and adjusting the hZoom automatically for a smoother viewing of the waveform