USB Logger can fail/cause freezing if interrupts start too soon after StartLog

[stephenhensley]

Seems like this is probably a callback function from the USB getting interrupted by the audio IRQs which are higher priority. Specifically I'm guessing the descriptor functions are getting interrupted, but I haven't stepped through everything myself yet.

A workaround for now is to use a delay (500ms seems acceptable) between StartLog and any subsequent Init or Start functions that would cause periodic interrupts.

Longterm we should add ScopedIrqBlockers to the functions that can cause issues when interrupted.

[stephenhensley]

Also, possibly related to this, the freezing seems to trigger from hot-plugging the USB cable while the Daisy is powered.