Create IWorldData and IWorldProvider interfaces in api

This fully exposes waypoints in the api, next step is cached worlds!

src/main/java/baritone/Baritone.java

@@ -22,6 +22,7 @@ import baritone.api.Settings;
 import baritone.behavior.Behavior;
 import baritone.api.event.listener.IGameEventListener;
 import baritone.behavior.*;
+import baritone.cache.WorldProvider;
 import baritone.event.GameEventHandler;
 import baritone.utils.InputOverrideHandler;
 import net.minecraft.client.Minecraft;
@@ -87,6 +88,8 @@ public enum Baritone {
         // We might want to change this...
         this.settings = BaritoneAPI.getSettings();
 
+        BaritoneAPI.registerProviders(WorldProvider.INSTANCE);
+
         this.behaviors = new ArrayList<>();
         {
             registerBehavior(PathingBehavior.INSTANCE);