更新框架，增加云库搜索模块

Core/MAX.Framework/Commons/AppException.cs

@@ -0,0 +1,18 @@
+using MAX.Framework.Dtos;
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace MAX.Framework.Commons
+{
+	public class AppException : Exception
+	{
+		public int Code { get; }
+
+		public AppException(string message, int code = ResultCode.BusinessError)
+			: base(message)
+		{
+			Code = code;
+		}
+	}
+}