Added a utils module to the tools sub-package with options for argparse
Change default log level to WARNING and renamed handler functions in logging

- Renamed the logging.configure_*_handler() to
  logging.create_*_handler().
- Added a prog argument to logging.create_file_handler() to set a
  custom program name.
Added an add_edb_command_options() function to tools.utils
Made most tools use the helpers in the tools.utils module

- Made some pep8 clean-up in extend_template_edb.
Merge branch 'topic/toolutils' into develop

- Added a tools.utils module with helpers for pyAirviro's tools.
Renamed most tools into non-camel case names