Adding schema based object folders in OE (#1849)

* Making node types automated

* Adding schema based OE

* added folder types in NodeTypes

* Fixing stuff

* Moving schema to parent and cleaning up some code

* Replacing strings with nameof

* Sorting nodetypes generated by tt

* Adding option to put folders after nodes

* Fixing folder and children order

* Fixing tests

* Formatting file

* Formatting tt files

* Fixing tt

* fixing types

* Update src/Microsoft.SqlTools.ServiceLayer/SqlContext/ObjectExplorerSettings.cs

Co-authored-by: Charles Gagnon <chgagnon@microsoft.com>

* Fixing stuff

* Updating schema definitions and adding more logs

* Fixing copyright

* Adding Integration and Unit Tests

* Fixing test

---------

Co-authored-by: Charles Gagnon <chgagnon@microsoft.com>

src/Microsoft.SqlTools.ServiceLayer/Workspace/WorkspaceService.cs

@@ -331,6 +331,7 @@ namespace Microsoft.SqlTools.ServiceLayer.Workspace
             {
                 Logger.Write(TraceEventType.Verbose, "HandleDidChangeConfigurationNotification");
 
+                this.CurrentSettings = configChangeParams.Settings;
                 // Propagate the changes to the event handlers
                 var configUpdateTasks = ConfigChangeCallbacks.Select(
                     t => t(configChangeParams.Settings, CurrentSettings, eventContext));