Updated argument handling

Usage: start_environment.exe [OPTIONS] <EXECUTABLE_PATH> [EXECUTABLE_ARGUMENTS]...

Arguments:
  <EXECUTABLE_PATH>
  [EXECUTABLE_ARGUMENTS]...

Options:
  -d, --executable-working-directory <EXECUTABLE_WORKING_DIRECTORY>
          Default is directory containing executable
  -p, --environment-path <ENVIRONMENT_PATH>
          [default: ./env]
  -c, --environment-config <ENVIRONMENT_CONFIG>
          [default: ./environment_config.json]
  -u, --username <USERNAME>
          [default: default]
  -h, --help
          Print help
  -V, --version
          Print version