Addressing code review feedback

src/Microsoft.SqlTools.ServiceLayer/Connection/Contracts/ConnectResponse.cs

@@ -0,0 +1,23 @@
+//
+// Copyright (c) Microsoft. All rights reserved.
+// Licensed under the MIT license. See LICENSE file in the project root for full license information.
+//
+
+namespace Microsoft.SqlTools.ServiceLayer.Connection.Contracts
+{
+    /// <summary>
+    /// Message format for the connection result response
+    /// </summary>
+    public class ConnectResponse
+    {
+        /// <summary>
+        /// A GUID representing a unique connection ID
+        /// </summary>
+        public string ConnectionId { get; set; }
+
+        /// <summary>
+        /// Gets or sets any connection error messages
+        /// </summary>
+        public string Messages { get; set; }
+    }
+}