Add voice messages

[sebaxakerhtc]

Hi. Can you add a voice messages/chats to this awesome project?
Here is an example implementation in old project

[xawos]

Nice idea, added it here forking this repo :)

@ruecat: of course feel free to steal my code as I did with yours.
I didn't create a fork as I'm lazy, let me know if you'd prefer for me to fork and contribute, happy to