增加项目，分层

Store.Management.Framework/Configs/ManagementServiceConfigKeys.cs

@@ -0,0 +1,13 @@
+namespace Store.Management.Framework.Configs
+{
+    /// <summary>
+    /// Management 项目的服务配置 Key。
+    /// </summary>
+    public static class ManagementServiceConfigKeys
+    {
+        /// <summary>
+        /// Management 默认服务配置。
+        /// </summary>
+        public const string Default = "Management";
+    }
+}