Function rtc_create_peer 

pub fn rtc_create_peer(stun_servers: &str) -> u32

Create a new WebRTC peer connection.

stun_servers is a comma-separated list of STUN/TURN URLs (e.g. "stun:stun.l.google.com:19302"). Pass "" for the built-in default.

Returns a peer handle (> 0) or 0 on failure.