Many MMCore commands are blocking on specifically Nikon Ti2 microscopes

[AlexHensley]

Certain microscope actions through MMCore block subsequent code from running until the action is completed when using a Nikon Ti2. For example, setXYPosition or changing the filter turret will wait until the stage or filter turret has reached the desired position before moving on to the next line in my code. This is in contrast to my older Nikon Eclipse Ti which immediately moves to the next line allowing for multiple actions to be performed simultaneously such as stage and turret moves, or any variety of computation during that otherwise idle time. I can then use the waitForSystem or waitForDevice commands when I'm ready to confirm that everything is in place.

I realize there's a risk of crashing hardware together while performing multiple operations at once, but being able to do things at the same time like on Micro-Manager's implementation of older Nikon scopes would be very useful for power users and professionals.