private static int GetCoef(Message messsage)
        {
            int coef = 0;
            if (messsage.Issue.Certainty >= 1 && messsage.Issue.Certainty <= 50)
            {
                coef += 1;
            }
            else if (messsage.Issue.Certainty >= 51 && messsage.Issue.Certainty <= 99)
            {
                coef += 2;
            }

            switch (messsage.Issue.Level)
            {
                case "Error":
                    coef += 2;
                    break;
                case "Warning":
                    coef += 1;
                    break;
            }

            //switch (messsage.FixCategory)
            //{
            //    case "NonBreaking":
            //        coef += 2;
            //        break;
            //    case "Breaking":
            //        coef += 1;
            //        break;
            //}

            return coef;
        }
 internal static int GetPositiveCoef(Message[] fixedMessages)
 {
     var value = 0;
     foreach (var item in fixedMessages)
     {
         value += GetCoef(item);
     }
     return value;
 }
 internal static int GetNegativeCoef(Message[] addedMessages)
 {
     var value = 0;
     foreach (var item in addedMessages)
     {
         value -= GetCoef(item);
     }
     return value;
 }