Add rolls eyes emoji

I saw you guys did an emoji update recently. It would be great to have this as well.

It seems like fairly low hanging fruit.

Thanks!

@agibsonccc Is there an existing rolling eyes emoji? The closest I can find is 😒 :unamused: or 👀 :eyes: which you can already use today.

We use emojify and is based off the standard emoji cheat sheet, http://www.emoji-cheat-sheet.com/

The best way to make this happen is get it on the emoji cheat sheet and make a branch of emojify that includes the emoji. We can take in those changes and run the custom branch.

Created by: MaXFalstein

This is a must!