Allow --console to be an argument when packaging

[doug-benn]

Please Describe The Problem To Be Solved

Allow "--console" to be an optional argument when building to allow debugging packaged apps, defaults to no console

Not sure if needed but I used it the other day - needed to edit pack.py in my install

Suggest A Solution

pack.py

        parser.add_argument(
            "--debug-console",
            dest="debug-console",
            help="Show python console (Ensure correct DEBUG level)",
        )

...

        pyi_args = [options.script,  "--noconfirm"]
        if not options.debug_console:
            pyi_args.extend(["--noconsole"])

https://github.com/doug-benn/flet/commit/75eb3105a60c6171c0bcb0471559b765f7c1acac

[FeodorFitsner]

Would you like to submit a PR with that flag?