Remote control car example with OpenCV UI#46

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davinellulinvega wants to merge 30 commits intozayfod:devfrom davinellulinvega:dev

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Commits on Apr 21, 2021

Add pynput as a new requirement.
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Rewrite the whole example of remote controlling Cozmo using OpenCV and pynput.
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Fix some of the syntactic warnings.
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Since step() only processes frame, the call to queue.get() can be blocking.
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Turns out you can put the display into a thread, so removing the step() function, putting its content in the rawCameraImage callback, and replacing step() by a simple sleep in the main loop.
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Add comments around the cv.waitKey() function and increase the interval between frame display.
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Replace the time.sleep() function with Event.wait() to prevent the main loop from blocking the execution of other threads while it is asleep.
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Commits on Apr 22, 2021

Commits on Apr 26, 2021

Move everything concerning the display into the Display class and pass references to callbacks in the RemoteController class.
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