[FEATURE] Add method to send audio to Azure Text to Speech

[MaxwellDPS]

@dreinhold What do you think about adding a text to speech function, Auzre give 5 audio hours free ;) https://azure.microsoft.com/en-us/pricing/details/cognitive-services/speech-services/

Id imagine we'd be able to add the api request to the add_tx job and then store the response in the DB?