New Binding: Amazon Echo

Wow, sounds great, Dan!
I am looking forward to try it out soon!
Would also be great if you could create a PR, so we can discuss details directly on Github then.
At a very first glance, it e.g. does not really fit into the “binding” category - I think it is something “new” instead that we should define :slightly_smiling:

Cheers,
Kai