Modified AIY Cloud Speech Example to play music files with pygame
Added Korean TTS features to speak Korean.
gTTS: https://gtts.readthedocs.io/en/latest/
Naver Clova Speech Synthesis:http://docs.ncloud.com/ko/naveropenapi_v3/speech/synthesis.html
Google Cloud Text-to-Speech: https://cloud.google.com/text-to-speech/docs/quickstart-client-libraries
[Tutorial]
https://blog.naver.com/eziya76/221425140936
