[QA CALLFORREVIEW] - Create VclTreeListBox for WINDOW_TREELISTBOX controls

[Linyi Li]

Hi,

I added VclTreeListBox control to make it easier to write GUI test cases.
Pls help to review it. Thx~
I created a defect to follow this task.
https://issues.apache.org/ooo/show_bug.cgi?id=120384

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Best wishes.
Linyi Li