XEvent Profiler initial event handlers (#456)

* Bump SMO to 140.2.5 to pick-up private XEvent binaries

* Pick up SMO binaries from the build lab

* Add ProfilerService class placeholder

* Update SMO nuget package to include DB Scoped XEvents

* Stage changes

* Stage changes

* Update SMO to use RTM dependencies and remove separate SqlScript package

* Stage changes

* Iterate on profiler service

* Fix post-merge break in localization

* More refactoring

* Continue iterating on profiler

* Add test profiler listener

* Address a couple of the code review feedback

* Fix AppVeyor build break

* Use self-cleaning test file

src/Microsoft.SqlTools.ServiceLayer/Profiler/IProfilerSessionMonitor.cs

@@ -0,0 +1,32 @@
+//
+// 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.Generic;
+using System.Data.SqlClient;
+using System.Linq;
+using System.Xml;
+using Microsoft.SqlTools.ServiceLayer.Connection.Contracts;
+using Microsoft.SqlServer.Management.Sdk.Sfc;
+using Microsoft.SqlServer.Management.XEvent;
+
+namespace Microsoft.SqlTools.ServiceLayer.Profiler
+{
+    /// <summary>
+    /// Profiler session monitor interface
+    /// </summary>
+    public interface IProfilerSessionMonitor
+    {
+        /// <summary>
+        /// Starts monitoring a profiler session
+        /// </summary>
+        bool StartMonitoringSession(ProfilerSession session);
+
+        /// <summary>
+        /// Stops monitoring a profiler session
+        /// </summary>
+        bool StopMonitoringSession(string sessionId);
+    }
+}