create a Invoice with 2 or more outputs (+change)

I would like to see a feature, so that I can create an Invoice though the API, but split the outputs to 2 or more wallets.


Imagine a Shop where you want to publicly traceable donate a percentage of your sales for a good cause. Like 10% of every payment made is directly sent to the wallet of good cause.

Another use case would be a external provider that offers a service and can be paid a fee, directly, on every purchase.
I would really like to see that feature.

