Test with stuff + Forestry potential support

BM_src/forestry/api/storage/BackpackManager.java

@@ -0,0 +1,22 @@
+package forestry.api.storage;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+
+import net.minecraft.item.ItemStack;
+
+public class BackpackManager {
+	/**
+	 * 0 - Miner's Backpack 1 - Digger's Backpack 2 - Forester's Backpack 3 - Hunter's Backpack 4 - Adventurer's Backpack
+	 * 
+	 * Use IMC messages to achieve the same effect!
+	 */
+	public static ArrayList<ItemStack>[] backpackItems;
+
+	public static IBackpackInterface backpackInterface;
+
+	/**
+	 * Only use this if you know what you are doing. Prefer backpackInterface.
+	 */
+	public static HashMap<String, IBackpackDefinition> definitions = new HashMap<String, IBackpackDefinition>();
+}