完成新建设备的单元 测试包括，添加变量表，和添加菜单

DMS.Application/DTOs/DeviceDto.cs

@@ -7,7 +7,7 @@ public class DeviceDto
 {
     public int Id { get; set; }
     public string Name { get; set; }
-    public string Protocol { get; set; }
+    public ProtocolType Protocol { get; set; }
     public string IpAddress { get; set; }
     public int Port { get; set; }
     public int Rack { get; set; }