RtcPeerConnection support setConfiguration function

[k-wasniowski]

Motivation

I would like to be able to use all available methods of RTCPeerConnection defined here. One of missing methods is setConfiguration, which is often used to change configuration without need to create new Peer Connection.

Proposed Solution

Implement a binding between JS API, and Rust WASM API.
I have created a PR: #4105, there are few test cases failing. I am happy to finalize the work, with some assistance how to resolve those failures.