Integrate new listener code into autogen

[anzdaddy]

Please do not post any internal, closed source snippets on this public issue tracker!

Purpose

Please describe the end goal you are trying to achieve that has led you to request this feature.

Currently, autogen runs a simple insecure listener. Integrate it with the sysl-go library code that builds a rich configurable listener.

Suggested approaches

What have you tried, and how might this problem be solved?

[andrewemeryanz]

Implemented.