Protocol: Validate with Additional Handlers (such as MotorHandler)

[Yuffster]

This one's tricky. The MotorHandler is making calls to the ContextHandler that will decrement tip inventories, but then ContextHandler can't do a virtual run on tip inventory because it will cause a double decrement...

But it would be nice to know in advance if a protocol is going to fail its run due to lack of tips.

[Yuffster]

I should probably just leave that verification to the MotorHandler in virtualized mode.

[Yuffster]

Alright, the right way to do this is to roll in all the machine-specific problems to the virtualized context and then run it when the ContextHandler runs.

And probably suppress the logging.