Use a TOML/JSON/YAML configuration for proxy state

[xunholy]

The proxy CLI should be configurable via a TOML file which contains the state and variables that can be easily modified via scripting or manually with the user.

This will remove complexity in the logic and make the tool easier to update configuration settings in the future.

This issue will most likely be a pre-requisite for #53 #23 #22 #21 #16