feat(queueconfig): adding entity and basic interface for queue config

[kevinlnew]

Summary

feat(queueconfig): adding entity and basic interface for queue config

why not create an implementation of the extension?

• This is open to users to implement or have in-house solutions; generally, uberfx services can plug-and-play configfx with minimal extra configs to provide the struct, so the same idea holds for others.
  • I'm open to creating a basic yaml reader if necessary.

Why?
Services require stored configuration for queue config data, readable by queue name (which is passed by request).

What?

• Added a basic config entity for queue config
• Added a basic interface for getting a queueconfig by name.

Test Plan

Basic unit testing for constructor for queue config entity.

Issues