Plumb Graph Events to Webview Environment

[nick-thompson]

Right now if you use any of the analysis nodes (meter, snapshot, etc) the events never go anywhere because the template here has not wired them up. This task is to fix that.

The work should be easy enough: Add a juce::Timer which periodically calls Runtime::processQueuedEvents, serializes the event batch, and dispatches it to the webview (if exists) by calling a new __receiveGraphEvents__ global (if exists)

[nick-thompson]

Done in 8a4b430, will close this out after the merge to main