support domain name besides IP sent to the client in ICE candidates

Summary

support domain name besides IP sent to the client in ICE candidates

Motivation

This would allow specify the external domain sent to the client's browser, and the ip should be resolved on the client side to increase flexibility

Describe alternatives you've considered

A clear and concise description of the alternative solutions you've considered.

Additional context

ice/external_ip_mapper.go

Line 12 in 753c2a0

ip := net.ParseIP(ipStr)

[Sean-Der]

Sounds good to me!

@Rambling2076 are you interested in implementing this? Happy to help however I can :)

I would implement this like mDNS maybe? Do the resolution/lookup asynchronous?

@Sean-Der i really hope i could but i am not familiar with go
also i couldn't find where this string goes to the client's browser