add local_urls to match local_settings

[simonLeary42]

Please correct me if I'm wrong:

A typical django workflow involves creating a project with django-admin startproject, then you get a "project directory", which is distinct from the "app directory". A django "project directory" contains manage.py, settings.py, urls.py, asgi.py , and wsgi.py.

Coldfront does away with the project directory and instead:

• manage.py is replaced with the coldfront binary
• settings.py is replaced with coldfront/config/settings.py which the user can extend
• wsgi.py is replaced with coldfront/config/wsgi.py
• asgi.py is removed
• urls.py is replaced with coldfront/config/urls.py which the user cannot extend without keeping a dirty worktree

I would like to extend the URLs config without keeping a dirty worktree, so I added local_urls.py which behaves exactly like local_settings.py.

[aebruno]

@simonLeary42 Can you fix up the linting errors. Thanks!

[aebruno]

@simonLeary42 please squash into single signed commit. Thanks!

[simonLeary42]

For the record, the reason I want to do this is so I can use https://github.com/django-commons/django-debug-toolbar