p5.sound.js version 2 release

[ksen0]

• p5.sound.js migration guide p5.js-compatibility#33
• FES output for missing functions
• examples on the site showing Tone.js usage, such as the Monosynth example
• Documentation task: Radically simplify and clarify all language (no presumed background knowledge of any kind) and ensure docs are on the site (status: in progress or mostly done)
• Examples on the website incl Sound examples p5.js-website#1232

Next up

After processing/p5.js#8882 is merged, update FES usage (use actual FES from p5.js core, not "FES-style" warnings) and localize to Spanish