Migrate from wrapper classes to Mixins

[acorbin3]

I found out that RuneLite uses their own Mixins framework but it was based off of this minecraft lib which injected functions, methods, fields, etc into the client: https://github.com/SpongePowered/Mixin

Currently I dont have time to research into this so I am just creating wrapper functions to create an API for scripting. What I would like to do is migrate to Mixins so that we dont need a wrappers around the interfaces. Here is an old source to use: https://github.com/reb1995/Runelite-with-DEOB