Add configuration to server

Issue Description

To deploy our server to different environments without changing the way the code is written, we need a way to supply configuration to the server when it runs.

I'm working on a configuration module for the server and once that's ready, let's add it to this project.

Supporting Documentation

No response

Implementation Details

Use the config module I'm writing to accomplish this. Some of the first candidates for configuration are what server addr to listen on. Eventually we'll have other pieces of configuration like database credentials and so on.

Acceptance Criteria

[ ] The new config module is added to eventual
[ ] We're loading any current configuration needs with it

bldg14 / eventual