Enable argument parser.
Rename src.path to src.util and add timer method.
Fix code style in create_sample.py
Enable argument parser to control what the script does.
Delete scripts. Not needed any longer.
Add usage notes to documentation.
Merge branch 'cli'

* cli:
  Add usage notes to documentation.
  Delete scripts. Not needed any longer.
  Enable argument parser to control what the script does.
  Fix code style in create_sample.py
  Rename src.path to src.util and add timer method.
  Enable argument parser.