fixed facade for update

OGP1718-Worms/src/worms/facade/Facade.java

@@ -282,6 +282,16 @@ public class Facade implements IFacade {
         return null;
     }
 
+    /**
+     * Make the given worm eat a portion of food.
+     *
+     * @param worm
+     */
+    @Override
+    public void eat(Worm worm) {
+
+    }
+
 //    /**
 //     * Returns the x-coordinate of the current location of the given worm.
 //     *