Add support for Python scripting in GUI

[mithro]

Description

Currently the OpenROAD GUI has a "Scripting" window which accepts TCL commands. TCL isn't a commonly known language and not that user friendly, while Python has become one of the most popular languages on the planet and is well praised for its user friendliness.

Suggested Solution

It would be really nice if you could select the "Scripting" window to be either the TCL or Python language.

Additional Context

No response

[maliberty]

There is a start to this in #2762 but I don't think @gadfort has had any time for it recently.

[gadfort]

@maliberty yeah, that fell through the cracks.
Basically, there are a couple of issues:

• the logging doesn't go through the logger, so that doesn't work right
• exit and hide needs to be reworked to handle the GUI properly