mkdir
=====

:Purpose: Create a new versioned directory.
:Usage:   brz mkdir DIR...

:Options:
  -h, --help     Show help message.
  -p, --parents  No error if existing, make parent directories as needed.
  -q, --quiet    Only display errors and warnings.
  --usage        Show usage message and options.
  -v, --verbose  Display more information.

:Description:
  This is equivalent to creating the directory and then adding it.