FIX: #229 : Error when loading .tui.json file in ttkdesigner

.vscode/launch.json

@@ -33,7 +33,7 @@
             "module": "ttkDesigner",
             "console": "integratedTerminal",
             "justMyCode": true,
-            "args": ["experiments/MenuBar.03.tui.json"]
+            "args": ["ttkDesigner/tui/newWindow.tui.json"]
         },{
             "name": "Python: Demo",
             "type": "python",

TermTk/TTkUiTools/uiloader.py

@@ -22,13 +22,11 @@
 
 __all__ = ['TTkUiLoader']
 
-# Yaml is not included by default
-# import yaml
-import os, json
+import json
 
 from TermTk import TTkLog
-from TermTk import TTkCfg, TTkColor
-from TermTk.TTkLayouts import TTkLayout, TTkGridLayout, TTkVBoxLayout, TTkHBoxLayout
+from TermTk import TTkCfg, TTkK, TTkColor
+from TermTk.TTkLayouts import TTkLayout, TTkGridLayout
 from TermTk.TTkWidgets import *
 from TermTk.TTkTestWidgets import *
 from TermTk.TTkUiTools.uiproperties import TTkUiProperties