runelite-api: add getRegionMin/MaxLocation for GameObject

runelite-api/src/main/java/net/runelite/api/GameObject.java

@@ -32,5 +32,20 @@ import java.awt.Polygon;
  */
 public interface GameObject extends TileObject
 {
+	/**
+	 * Returns the min x,y for this game object
+	 *
+	 * @return
+	 */
+	Point getRegionMinLocation();
+
+	/**
+	 * Returns the max x,y for this game object. This is different from
+	 * {@link #getRegionMinLocation()} for objects larger than 1 tile.
+	 *
+	 * @return
+	 */
+	Point getRegionMaxLocation();
+
 	Polygon getConvexHull();
 }

runelite-mixins/src/main/java/net/runelite/mixins/RSGameObjectMixin.java

@@ -26,6 +26,7 @@ package net.runelite.mixins;
 
 import java.awt.Polygon;
 import net.runelite.api.Model;
+import net.runelite.api.Point;
 import net.runelite.api.Renderable;
 import net.runelite.api.mixins.Inject;
 import net.runelite.api.mixins.Mixin;
@@ -34,6 +35,20 @@ import net.runelite.rs.api.RSGameObject;
 @Mixin(RSGameObject.class)
 public abstract class RSGameObjectMixin implements RSGameObject
 {
+	@Inject
+	@Override
+	public Point getRegionMinLocation()
+	{
+		return new Point(getRelativeX(), getRelativeY());
+	}
+
+	@Inject
+	@Override
+	public Point getRegionMaxLocation()
+	{
+		return new Point(getOffsetX(), getOffsetY());
+	}
+
 	@Inject
 	@Override
 	public Polygon getConvexHull()