TTS support

[challenges90]

Could you please add support for TTS?

Example:

•            Alexa, tell Sonos to say hello world.
  

•            Alexa, tell Sonos to say I love you.
  

•            Alexa, tell Sonos to say dinner is ready in living room.
  

•            Alexa, tell Sonos to say good night in bedroom.
  

It can be used as a remote speaker. And if every room has an echo and sonos, they can be used as two-way radios. That will be cool.

[jhmartin]

This would be awesome, great way for me to tell the kids upstairs to wind down their game without yelling.