Add support for `TyperArgument` arguments

It seems like typer.Argument params are being grouped in with the other options. This happens whether or not SHOW_ARGUMENTS is enabled.

[zmoon]

How about this?

from rich_click import typer

typer.rich_click.SHOW_ARGUMENTS = True


def cli(
    name: str = typer.Argument("World"),
    say_hi: bool = typer.Option(True),
):
    if say_hi:
        print(f"Hello, {name}!")


if __name__ == "__main__":
    typer.run(cli)

The argument shows with SHOW_ARGUMENTS = True set, but in the Options section. Same result regardless of the setting of GROUP_ARGUMENTS_OPTIONS.

[taranlu-houzz]

@AlirezaTheH @ewels @zmoon Hey, sorry I never got back on this. Thanks for taking things forward!