Create CODE_OF_CONDUCT.md

[mcevoyandy]

why doesn't MoveIt! have a code of conduct? I think it's essential to promote an all-inclusive and welcoming atmosphere.

Description

added code of conduct from Contributor Covenant

Checklist

• Required: Code is auto formatted using clang-format
• Extended the tutorials / documentation, if necessary reference
• Include a screenshot if changing a GUI
• Optional: Created tests, which fail without this PR reference
• Optional: Decide if this should be cherry-picked to other current ROS branches (Indigo, Jade, Kinetic)

You can expect a response from a maintainer within 7 days. If you haven't heard anything by then, feel free to ping the thread. Thank you!

[davetcoleman]

Makes sense to me

[gavanderhoorn]

I think this is an ok idea. I wouldn't call it essential though.

[bmagyar]

It's not bad although Linus Torvalds would fail on many of these points. IMHO a project is there primarily to be useful for the community, not to be welcoming.

[v4hn]

sigh

To be honest I simply don't care about an explicit COC.
I don't oppose, but I don't particularly approve either.

For a long time the general maxim "be excellent to each other" was good enough for FOSS projects.
In my opinion it still is.

That being said, if we want to merge this file, we will have to talk about it at a maintainer meeting before, because this makes us as maintainers to blame if something goes wrong somewhere in the community.

It would be nice if you could attend the next video meeting @mcevoyandy .

[v4hn]

Should be discussed/decided on at a maintainer meeting.

[davetcoleman]

Good point, lets discuss at a maintainer meeting! I think overall its a good discussion to have and can possibly improve MoveIt!'s legitimacy for securing grant money to fund open source projects