Agent Proxy and Credential request handlers (#637)

* Agent Proxy account WIP

* Fixup Credential create\update\delete handlers

* Use current user for test credential

* Cleanup and delete code

* Convert tabs to spaces

src/Microsoft.SqlTools.ServiceLayer/Agent/Jobs/JobNotificationsActions.cs

@@ -0,0 +1,43 @@
+//
+// Copyright (c) Microsoft. All rights reserved.
+// Licensed under the MIT license. See LICENSE file in the project root for full license information.
+//
+
+using System;
+using System.Collections;
+using System.Globalization;
+using Microsoft.SqlServer.Management.Smo;
+using Microsoft.SqlServer.Management.Common;
+using Microsoft.SqlServer.Management.Sdk.Sfc;
+using Microsoft.SqlServer.Management.Smo.Agent;
+using Microsoft.SqlTools.ServiceLayer.Management;
+using Microsoft.SqlTools.ServiceLayer.Admin;
+
+namespace Microsoft.SqlTools.ServiceLayer.Agent
+{
+    /// <summary>
+    /// Summary description for JobNotifications.
+    /// </summary>
+    internal class JobNotificationsActions : ManagementActionBase
+    {
+        private JobData data;
+        private bool loading = false;
+
+        public JobNotificationsActions(CDataContainer dataContainer, JobData data)
+        {
+            this.DataContainer = dataContainer;
+            this.data = data;
+        }
+
+        /// <summary>
+        /// Clean up any resources being used.
+        /// </summary>
+        protected override void Dispose(bool disposing)
+        {
+            if (disposing)
+            {
+            }
+            base.Dispose(disposing);
+        }
+    }
+}