Refactored StorageChannel enum into an interface (#3138)

This replaces the static enum with a more dynamic interface providing
factory methods for handling network storage.

src/main/java/appeng/util/inv/IMEInventoryDestination.java

@@ -46,7 +46,7 @@ public class IMEInventoryDestination implements IInventoryDestination
 			return false;
 		}
 
-		final IAEItemStack failed = this.me.injectItems( AEItemStack.create( stack ), Actionable.SIMULATE, null );
+		final IAEItemStack failed = this.me.injectItems( AEItemStack.fromItemStack( stack ), Actionable.SIMULATE, null );
 
 		if( failed == null )
 		{