Rename repo from ov_wag -> ov-wag

[mrharpo]

Because

With ov-deploy #23:
We need to rename this repository from ov_wag to ov-wag because the deploy script expects names to be identical and Rancher does not allow _ in namespaces

Also because standardizing to ov-* will simplify many other issues going forward.

Done when

• This repo is renamed ov-wag
• Local git urls are changed across all machines
• Docker hub repository created for ov-wag
• New ov-wag Images are pushed to Docker hub
  Links across repositories are amended (optional)

[mrharpo]

Exception

The ov_wag python module (i.e. the folder inside the ov-wag python package) is kept as an _ for consistency with python imports.

E.g:

import ov_wag

Also reflected in settings/base.py:

WSGI_APPLICATION = 'ov_wag.wsgi.application'

This is because python interprets - as minus.

Further details: https://pyphilly.org/hyphen-and-underscores-when-use-each-django-and-python/#:~:text=Python%20Prefers%20Underscores,name%20if%20it%20improves%20readability.