Module refactor

[kaylendog]

Module refactor

• Separate API and plugin code into separate Gradle modules.
• Remove the dependency of the API on the plugin itself.
• Orient the API more towards an externally accessible type definition of available Warrior features.
• Require the plugin to implement the API.

Todo List

• [x] Move WarriorUser into plugin module.
• [x] Move NMS into the plugin module, as this shouldn't be exposed on the API.
• [x] Move models into the plugin module, as only the base interfaces need to be exposed.
• [ ] Create the Arena API interface and move the existing Arena to the plugin module.
• [ ] Fix up translation to be less dependent on references to the Warrior plugin instance.
• [ ] Fix up kit API (see #20)
• [ ] Convert plugin module to kotlin
• [ ] Clean up plugin startup logic
• [ ] Create Session interface/helper utils and move implementations to plugin module

[kokumaji]

Plugin almost compiles, getting some encoding and kotlinKapt errors that I can't seem to fix.

Compiling the plugin returns the following error during the kotlinKapt task, however no detailed stacktrace is provided.

org.jetbrains.kotlin.kapt3.base.util.kaptbaseerror: error while annotation processing

Gradle also complains about the Symbols class being encoded in windows-1252, indicating that Intellij or Gradle ignore that the project should be UTF-8 only

[kokumaji]

Made the Kit interface use JSON for inventory and possibly metadata for easier modification, is not done yet and default items (heal items/special ability item) still need to be implemented somehow, but this should work in theory

[kokumaji]

I think it's worth considering a full rewrite at this point. The entire code is pretty messy and certain things such as the session objects are useful, but weren't implemented correctly. Would need to figure out a better way to handle "sessions", scrap this concept entirely or clean up the current code.