[new feature]Support for Command-Based Speech Input about speech_to_text

[sowens-csd]

I've considered doing this as either a separate plugin or some new classes that work with Speech to text. It's a good idea as it fits in well with the intended goal of the plugin. I haven't had time to cleanup the classes that I use to do this for inclusion but I'll increase the priority of that if people would be interested. Please upvote this feature if anyone else is interested.

Thanks for the input!

[eecopilot]

User can define several commands, and when the commands are heard, perform your own business logic in the callback.