Remove External Storage Handler (#2417) (#2508)

* Implemented an adapter for IItemHandler so it can be used by the Storage Bus.
* Added update hook for inject/extract to ItemHandlerAdapter.
* Implemented ItemHandler and FluidHandler capabilities for the condenser, as replacement for the Void Inventories.
* Removed external storage handler, added capability-based way of accessing a monitorable ME network via the storage bus. Removed special case inventories for the matter condenser.
* Implemented InventoryAdaptor for IItemHandler. This also now fixes molecular assemblers interaction with part interfaces.

src/api/java/appeng/api/features/IRegistryContainer.java

@@ -24,14 +24,11 @@
 package appeng.api.features;
 
 
-import net.minecraftforge.items.IItemHandler;
-
 import appeng.api.AEInjectable;
 import appeng.api.movable.IMovableRegistry;
 import appeng.api.networking.IGridCacheRegistry;
 import appeng.api.parts.IPartModels;
 import appeng.api.storage.ICellRegistry;
-import appeng.api.storage.IExternalStorageRegistry;
 
 
 /**
@@ -54,15 +51,6 @@ public interface IRegistryContainer
 	 */
 	IGridCacheRegistry gridCache();
 
-	/**
-	 * Add additional storage bus handlers to improve interplay with mod blocks that contains special inventories that
-	 * function unlike vanilla chests. AE uses this internally for barrels, DSU's, quantum chests, AE Networks and more.
-	 * 
-	 * @deprecated in favour of {@link IItemHandler}
-	 */
-	@Deprecated
-	IExternalStorageRegistry externalStorage();
-
 	/**
 	 * Add additional special comparison functionality, AE Uses this internally for Bees.
 	 */