Added missing @Override annotations with Eclipse

src/main/java/appeng/recipes/GroupIngredient.java

@@ -38,6 +38,7 @@ public class GroupIngredient implements IIngredient
 		return gi;
 	}
 
+	@Override
 	public int getDamageValue()
 	{
 		return OreDictionary.WILDCARD_VALUE;
@@ -94,6 +95,7 @@ public class GroupIngredient implements IIngredient
 		return out.toArray( new ItemStack[out.size()] );
 	}
 
+	@Override
 	public String getNameSpace()
 	{
 		return "";