Externalize Network Map

[danfinlay]

I wrote another ens client because it was my way of learning ENS.

I want it to keep its network/registry map up to date automatically, so I moved my network map to an external module, that we could maintain in a singular place, and benefit from together.

I'd gladly transfer the repository and npm control to ens/ethereum orgs for security purposes.

[Arachnid]

I can't believe this has languished here for nearly two years. Sorry Dan! Is this still something you'd like to integrate? I'd like to move the network management stuff out of this module.