Add Speech2Text support

[dk-dsr]

Add Speech2Text support so there's minimal typing required. We initially had done an implementation using Mozilla's DeepSpeech pre-trained model but it didn't work well for different types of accents.
We are thinking of using Chrome's built in Web Speech API and Firefox Voice addon and populate our query box with the text response. User can edit/fix the text and submit the query to get code. Another option which isn't explored yet, is to finetune DeepSpeech on a custom dataset, more suited for understanding dataframe, variable & column names.

Any contributions are welcome.

Following solutions can be explored:

1. Chrome's built in Web Speech API
2. Firefox Voice
3. Silero Models
4. Mozilla's DeepSpeech pre-trained models

[dk-dsr]

Using Firefox voice is fine for short term/poc but it won't be useful for long term as it will no longer be supported by Mozilla due to their realigned priorities. For details please visit: https://github.com/mozilla-extensions/firefox-voice#status

[ppsha3]

Hey,

I wanted to help with this. I am a first-timer so please vear with me. Will let you know of my progress soon. Where should I reach out?

[dk-dsr]

Please send a PR once the changes are done. We will review and merge.

[RavenousJim]

I have had varying results with different algorithms in sagemaker. It would be nice to use the Google API but there are at least a hundered different AI's, some free, some not.