resolve interactive inference stalling

[dhodcz2]

When run in interactive mode, inference would stall because sys.stdin.isatty() returns True however no input is actually ever piped to the subprocess. The solution is to add another commandline argument, --interactive that serves as a flag that the process is being run interactively and shouldn't (indefinitely) try reading from stdin:

        if (
            not self.interactive
            and not sys.stdin.isatty()
            and (text := sys.stdin.read()) != ''
        ):

When Raster.inference runs the subprocess, the new arguments are:

        args = [
            'python',
            '-m',
            'tile2net',
            'inference',
            '--city_info',
            str(info),
            '--interactive',
        ]