Signal Scopes for intermediate waveform

The aim of this project is to extend the current Synthesis State Watcher to additional low level waveform in different stage of producing note during Add synth, Sub synth etc. In additional, an oscilloscope-like view will also be implement in the UI, this will provide user the opportunity to see live progression of the intermediate waveform after filter, before mixing with another note etc. Allowing the user to see this them to understand how different parameter affect waveform of the sound and result in better music!