Support for emojis in labels?

1. A concise explanation of the problem you’re experiencing.

Emojis aren’t working in labels :sob:

Is this something you’d want in Cesium?
I have added it in one of my projects and I’m wondering if it would be of interest to have in cesium?
It would require the addition of this third-party library.

And in the contribution guidelines it suggests I should open a new thread here before adding a third party library.

I’m all for emojis!

If you’ve already added support for it, I would say just open the PR asking for feedback and see what other developers think. CesiumJS is already pretty huge and I can imagine it might be a hard sell if it adds a lot in terms of size, but nothing wrong with opening the PR and getting feedback.