Moveitpy ur

[Mennosytsma]

Description

Added a launch file and description on how run this with a simulated robot for the moveitpy tutorial combined with an UR robot as described in #810.

I don't have any experience with contributing code to an open source community like this and tried my best to follow the style guidelines and make as few changes as possible. If changes need to be made to this, please take some time to clearly explain to me what needs to be updated and I will review again what I did.

Checklist

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[apollo-elad]

any chance of adding a real-robot tutorial?