Show nameservers in cPanel

As a cPanel user, and as a webhosting provider, it would be useful for end users if the Zone Editor, Addon Domains and Aliases pages would show the nameservers a customer should use when pointing a domain at the server. For an account owned by a reseller, this should of course use the reseller's nameservers, if any are configured.

This will help reduce support needs from customers who need this information and have to contact their hosting provider to get it.