Program fixes , registering new stocks, without dbchanges

StockDal.Interface/IStockRepository.cs

@@ -20,5 +20,8 @@ namespace StockDAL.Interface
         void UpdateActualForSell(int id, int sellAmount, decimal sellPrice, DateTime sellDate);
         void UpdateActualPrice(int id, decimal price);
         IEnumerable<StockGrpPers> GetStocksGroupedPerPerson(int persId);
+        List<string> GetStockNames();
+        IEnumerable<StockGrpPers> GetGroupedStock(string stock);
+        StockGroupModel SaveStockGroup(StockGroupModel stockGroup);
     }
 }