Add Replicate demo and API

[chenxwh]

trafficstars

Hi @Zengyi-Qin,

Really impressive work on OpenVoice!

This pull request makes it possible to run OpenVoice on Replicate (https://replicate.com/cjwbw/openvoice) and via API (https://replicate.com/cjwbw/openvoice/api). Also happy to transfer the demo page to myshell-ai so you can make modifications easily :)

[Zengyi-Qin]

Thank you very much for the replicate deployment. We currently don't plan to add replicate compatibility to this repo. But you are welcome to host your own repo with replicate files

[Zengyi-Qin]

Thank you for hosting APIs on replicate! The team decides not to merge this to keep the repo simpler