Ability for a plugin to save a config

[5HT2]

This could be done in two ways:

1. Register a json file for each plugin alongside the config.json (this would need to explicitly disallow naming your plugin "config" and/or throw an error if multiple plugins have the same name)
   • Pros: Allows for keeping multiple versions easily (i.e., with plugin versions). Maybe have a compatibleVersions field plugins can check to keep configs backwards compatible.
   • Cons: Multiple files. Takes a tiny bit of extra work to do.
2. Register a new entry in the existing config with a map.
   • Pros: Easy to do.
   • Cons: Look at 1.'s pros section.

[5HT2]

This is next on my priority list.