preload database when database node is expanded (#1690)

src/Microsoft.SqlTools.ServiceLayer/SqlContext/TableDesignerSettings.cs

@@ -0,0 +1,18 @@
+//
+// 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.SqlContext
+{
+    /// <summary>
+    /// Contract for receiving table designer settings as part of workspace settings
+    /// </summary>
+    public class TableDesignerSettings
+    {
+        /// <summary>
+        /// Whether the database model should be preloaded to make the initial launch quicker.
+        /// </summary>
+        public bool PreloadDatabaseModel { get; set; } = false;
+    }
+}