Tool to process nc files in THREDDS/Hyrax services

[jyucsiro]

A good demonstrator of bald would be the ability to crawl THREDDS or Hyrax hosted nc files. Many of these exist already serving up nc files.

Propose a tool which would take a THREDDS endpoint and generate bald graphs to power demonstrators.

[jyucsiro]

Working on it here: https://github.com/jyucsiro/bald/tree/thredds_harvest

Need to sync with current master branch of bald