Merge branch 'new_turn' into 'main'

add MsgNewTurn

See merge request !4

idl/ocgcore.proto

@@ -200,9 +200,15 @@ message StocGameMessage {
     repeated int32 cards = 3; // 抽卡结果
   }
 
+  // 回合转换
+  message MsgNewTurn {
+    int32 player = 1; // 下一个操作的玩家编号
+  }
+
   oneof gameMsg {
     MsgStart start = 1;
     MsgDraw draw = 2;
+    MsgNewTurn new_turn = 3;
   }
 }