add: new qml modules

This MR adds the following QML modules;

• QtQuick.Studio.Utils
• Qt.labs.folderlistmodel
• QtWebSockets

src/importdummy.qml

@@ -22,12 +22,17 @@ import QtQuick.Studio.EventSimulator
 import QtQuick.Studio.EventSystem
 import QtQuick.Studio.LogicHelper
 import QtQuick.Studio.MultiText
+import QtQuick.Studio.Utils
 
 import QtQuickUltralite.Extras
 import QtQuickUltralite.Layers
 
 import FlowView
 
+import Qt.labs.folderlistmodel
+
+import QtWebSockets
+
 ApplicationWindow {
     visible: true
     width: 640