Automatically add "notif/uxd" issues to UXD Project

[dongniwang]

Per Roland's comment here, opening this issue to request

• The bot to automatically add an issue with the label notif/uxd to https://github.com/syndesisio/syndesis/projects/2.
• The bot to automatically tag @syndesisio/uxd when label notif/uxd is applied.

If only one of the above requests can be done, that's fine. The goal is to not miss any uxd related issues and have a timely response when possible.

I'm still trying to learn to best way to use Repo Project. @rhuss @heiko-braun Please advice if you know any best pratices. Thank you!

[heiko-braun]

Sounds good to me.