Crash on unknown arguments

[wesley-petit]

For one of my projects, I'm using TilesetTiler's parse_command_line function to parse 3D Tiles, and I'm also using non-py3DTilers arguments to set options in my application. However, I get an error message from py3DTilers TilesetTiler:

unrecognized arguments : --start_date 42

This is because, by default, TilesetTiler uses parse_args() which will create an error message when an unknown command appears: a https://stackoverflow.com/questions/12818146/python-argparse-ignore-unrecognised-arguments

You can create reproduces the error with :

    tiler = TilesetTiler()
    args = tiler.parser.parse_args(['--foo', '42'])

We can easily fix this issue using parse_known_args function.