[Warnings] Fix warnings

src/strategy/values/BudgetValues.cpp

@@ -180,6 +180,8 @@ uint32 MoneyNeededForValue::Calculate()
         case NeedMoneyFor::tradeskill:
             moneyWanted = (level * level * level); //Or level^3 (10s @ lvl10, 3g @ lvl30, 20g @ lvl60, 50g @ lvl80): Todo replace (Should be buyable reagents that combined allow crafting of usefull items)
             break;
+        default:
+            break;
     }
 
 	return moneyWanted;