STT with google is broken

[chrismbirmingham]

Updating the microphone to continuous streaming broke the google stt service. This needs to be updated to the continuous model, but there is an issue with knowing when to return the spoken text. The local deepspeech stt model uses a fixed time cutoff (.5s) of waiting for new text before assuming the user is done, which may be appropriate.

[micolspitale93]

I have asked the students working on the behavior trees to fix it (since they are working on the sample for a dialogue BT)