Support allowPriceModifications parameter in AskValidate message

Author: VladimirKhil

src/SICore/SICore/Clients/Game/Game.cs

@@ -2262,12 +2262,7 @@ private void OnAnswer(Message message, string[] args)
                         }
 
                         _state.QuestionPlay.Validations[answer] = null;
-
-                        _gameActions.SendMessageToWithArgs(
-                            _state.ShowMan.Name,
-                            Messages.AskValidate,
-                            i,
-                            answer);
+                        _gameActions.AskValidate(_state.ShowMan.Name, i, answer, !_state.QuestionPlay.FlexiblePrice);
                     }
 
                     break;

src/SICore/SICore/Clients/Game/GameActions.cs

@@ -433,6 +433,14 @@ internal void AskReview()
         }
     }
 
+    internal void AskValidate(string person, int playerIndex, string answer, bool allowPriceModifications) =>
+        SendMessageToWithArgs(
+            person,
+            Messages.AskValidate,
+            playerIndex,
+            answer,
+            allowPriceModifications ? '+' : '-');
+
     internal void SendContent(string placement, int layoutId, string label, string contentType, string effects, string value)
     {
         var messageBuilder = new MessageBuilder(Messages.Content2)