重构项目，将项目拆分（临时提交）

DMS.WPF/Message/NotificationMessage.cs

@@ -0,0 +1,17 @@
+using CommunityToolkit.Mvvm.Messaging.Messages;
+using DMS.Core.Enums;
+
+namespace DMS.Message;
+
+public class NotificationMessage : ValueChangedMessage<string>
+{
+    public NotificationMessage(string msg, NotificationType type = NotificationType.Info, bool isGlobal = false) :
+        base(msg)
+    {
+        Type = type;
+        IsGlobal = isGlobal;
+    }
+
+    public NotificationType Type { get; set; }
+    public bool IsGlobal { get; set; }
+}