Use hosts from `portsAttributes` to detect when a port should be forwarded

[alexr00]

This is an outcome of #6895.

There are several places that VS Code has the opportunity to notice that a port should be forwarded:

• terminal output (when auto forwarding is on)
• debug console (when auto forwarding is on)
• terminal link handling
• the extension API openExternal

In all of these places, we only forward the port if the host is localhost, 127.0.0.1, or 0.0.0.0.

This could be improved by looking for hosts in portsAttributes and then including those hosts when deciding whether to forward.

[felipecrs]

• Refs https://code.visualstudio.com/docs/editor/debugging#_automatically-open-a-uri-when-debugging-a-server-program for serverReadyAction