Add API to retrieve a players EnderChest. Adds BUKKIT-2016

src/main/java/org/bukkit/entity/HumanEntity.java

@@ -28,6 +28,13 @@ public interface HumanEntity extends LivingEntity, AnimalTamer, Permissible, Inv
      */
     public PlayerInventory getInventory();
 
+    /**
+     * Get the player's EnderChest inventory
+     *
+     * @return The EnderChest of the player
+     */
+    public Inventory getEnderChest();
+
     /**
      * If the player currently has an inventory window open, this method will set a
      * property of that window, such as the state of a progress bar.