31/WAKU2-ENR: Move websocket connection info from multiadrrs to ws_port + fqdn

[jimstir]

Reference Issue: vacp2p/rfc#578
Author: fryorcraken

Problem

As stated vacp2p/research#189 we are running out of real estate in ENR.

Acceptance Criteria

• Define new ENR fields to store FQDN and WSS ports information
• Cater for dns4 and dns6
• Do note encode when wss port is 443. Assume it is 443 if fqdn info is presen

[fryorcraken]

@richard-ramos do you think we need that? I know circuit relay take space.