Добавил класс реализацию бизнес логики писем

SecuritySystem/SecuritySystemBusinessLogic/BusinessLogics/MessageInfoLogic.cs

@@ -0,0 +1,20 @@
+using SecuritySystemContracts.BindingModels;
+using SecuritySystemContracts.BusinessLogicsContracts;
+using SecuritySystemContracts.SearchModels;
+using SecuritySystemContracts.ViewModels;
+
+namespace SecuritySystemBusinessLogic.BusinessLogics
+{
+    public class MessageInfoLogic : IMessageInfoLogic
+    {
+        public bool Create(MessageInfoBindingModel model)
+        {
+            throw new NotImplementedException();
+        }
+
+        public List<MessageInfoViewModel>? ReadList(MessageInfoSearchModel? model)
+        {
+            throw new NotImplementedException();
+        }
+    }
+}