Use bqt for Blender Qt integration

I would like to propose switching to bqt to integrate Qt/PySide2 into Blender for Ayon.
The major benefit is that it allow proper parenting of Qt widgets to the Blender window.

Its use is quite wide spread through the games industry and currently the Ayon integration conflicts with the bqt integration causing an error when trying to show widgets.

Here is the repo: GitHub - techartorg/bqt: A Blender add-on to support & manage Qt Widgets in Blender (PySide2)

Ported from forums:

• Use bqt for Blender Qt integration