Better CLI support

[eywalker]

Currently nvidia-docker-compose passes all command line arguments aside from -f onto the underlying docker-compose. But in the process, it ends up capturing options like -h, --help and any -f option, regardless of where it appears. This is quite inconvenient as nvidia-docker-compose --help do not provide any useful help menu (would make sense to show the help for docker-compose), and commands with -f as an option for the subcommands (e.g. docker-compose logs -f) doesn't work properly. The argparsing needs to be improved.