Abstract Common p5.sound.js Functionality

[pparocza]

Create base classes to abstract repeated functionality

P5SoundContext

• Constant Audio Context wrapping ToneContext()

P5SoundUtils

• Constant Utilities

P5SoundObject

• Base class from which all p5.sound.js objects inherit

P5SoundParameter

• Handle setting and connection of Audio Parameter values

P5SoundNode

• Base class for all audio nodes, abstracting output, connection, and volume setting
• Children: P5SoundSourceNode P5SoundEffectNode P5SoundAnalyzerNode

P5SoundSourceNode

• Base class for any P5SoundNode that only requires an output
• Children: P5SoundAudioIn

P5SoundStartableSourceNode

• Base class for any P5SoundSourceNode that requires start and stop functionality
• Children: P5SoundOscillator P5SoundFile P5SoundNoise

P5SoundEffectNode

• Base class for any P5SoundNode that requires both input and output
• Children: P5SoundBiquad P5SoundEnvelope P5SoundGain P5SoundPanner P5SoundPanner3D

P5SoundMixEffectNode

• Base class for any P5SoundEffectNode that provides a wet/dry mix
• Children: P5SoundDelay P5SoundPitchShifter P5SoundReverb

P5SoundAnalyzerNode

• Base class for any P5SoundNode that provides value outputs for audio inputs
• Children: P5SoundAmplitude P5SoundFFT

[pparocza]

Per conversation with @ogbabydiesal, made the following changes:

• Restore P5SoundNode output connects to destination by default
• Restore disconnect method
• Implement p5._friendlyError() in P5SoundNode (using newly-created P5SoundError Utility)