Priority GUI improvements (#3592)

src/main/java/appeng/helpers/IPriorityHost.java

@@ -18,6 +18,9 @@
 
 package appeng.helpers;
 
+import net.minecraft.item.ItemStack;
+
+import appeng.core.sync.GuiBridge;
 
 public interface IPriorityHost
 {
@@ -31,4 +34,8 @@ public interface IPriorityHost
 	 * set new priority
 	 */
 	void setPriority( int newValue );
+	
+	ItemStack getItemStackRepresentation();
+	
+	GuiBridge getGuiBridge();
 }