Handling Keyboard Events on the Audio Thread directly

[nat3Github]

It would be nice to have a way to handle Keyboard events directly in the audio thread.

Implementation Idea: a Channel<KeyEvents> that gets shared between the WindowHandle and the audiothread, where duplicate KeyEvent messages get send to the audiothread.

rationale: lower latency when triggering audio with the keyboard than going around the editor gui thread, possibly processing that late and sending it again to the audio thread.

This is a feature request not a bug!