New command line tools

[bclenet]

Closes #35

Changes proposed in this Pull Request:

• Wrapping some existing executables into command line tools
  • narps_open_runner for python narps_open/runner.py
  • narps_description for python narps_open/data/description
  • narps_results for python narps_open/data/results
  • narps_open_status for python narps_open/utils/status.py
• Creating a new command line tool narps_open_tester to launch pipeline for a given team and compare results with the original ones.

Checklist:

• Descriptive title
• Targets the main branch
• Changes are functional
• My code is explicit and comments were added to it
• Code conforms with PEP8
• Tests were added for the changes and they complete successfully
• Existing tests were updated (if needed) and they complete successfully
• Documentation was updated