Could you please add binding libraries for Azure Speech SDK

[ThinhTranA]

Link to SDK:
https://docs.microsoft.com/en-us/azure/cognitive-services/speech-service/speech-sdk
Currently, this SDK supports everything but Xamarin...

It has interests from Xamarin Forum as well
https://forums.xamarin.com/discussion/101308/how-to-implement-voice-to-text

Currently, I'm been using this library:
https://github.com/NateRickard/Xamarin.Cognitive.Speech
But it is using REST only 15 seconds and not supporting Websocket.

The Speech SDK support 2 core feature that REST doesn't have:

• Continuous transcription of long utterances and streaming audio (>15 seconds). Supports interim and final transcription results.
• Derive intents from recognition results with LUIS.
  Ref: https://docs.microsoft.com/en-us/azure/cognitive-services/speech-service/speech-to-text

[pictos]

Hey, if you guys want I can send a PR for Android Binding.

@ThinhTranA if you want to build by your self, just create a BindingLibrary and add this line in Metadata.xml

<remove-node path="/api/package[@name='com.microsoft.cognitiveservices.speech.internal']"/>

[newky2k]

@pictos that would be really good if you could!

thanks

[pictos]

@newky2k sure. Exists some guide for first contribution? I mean some information about the cakes, attached the .jar file, etc

[moljac]

FYI
Bindings and sample awaiting review.

PR
#667