Split the Curriculum Review Tool out into its own Django app

[cwdavies]

We want to migrate the Wagtail-dependent portions of the teachers-digital-platform app into cfgov-refresh to reduce complexity that the circular dependency between cfgov-refresh and teachers-digital-platform creates. This, the isolation of crtool into its own Django app, is a first step along that path.

Additions

• Create a new "crtool" Django app in the teachers-digital-platform repository to hold the CRTool URLs and templates.

Testing

1. Pull branch
2. ./setup.sh
3. Install for local development via the develop-apps folder or pip install -e

4. Add the following to cfgov/cfgov/urls.py:

       re_path(
          r'^practitioner-resources/youth-financial-education/curriculum-review/',  # noqa: E501
          include('crtool.urls')
      ),

5. Add crtool to INSTALLED_APPS in cfgov-refresh/cfgov/cfgov/settings/base.py
6. Test out http://localhost:8000/practitioner-resources/youth-financial-education/curriculum-review/ and http://localhost:8000/practitioner-resources/youth-financial-education/teach/activities/
7. Compare with production and ensure they look and function they same

Todos

In future PRs:

1. Move the Wagtail-dependent teachers_digital_platform app into cfgov-refresh/cfgov
2. Clean up the organization of the crtool app remaining in this repo

Checklist

• [x] Changes are limited to a single goal (no scope creep)
• [x] Code can be automatically merged (no conflicts)
• [x] Code follows the standards laid out in the front end playbook
• [x] Passes all existing automated tests
• [x] Visually tested in supported browsers and devices
• [ ] Project documentation has been updated (including the "Unreleased" section of the CHANGELOG)

[Scotchester]

The items that were in the teachers_digital_platform/__tests__/ folder pertain to the activity search interface, not the CR Tool, and should not be moved into the crtool/ folder.

[cwdavies]

The items that were in the teachers_digital_platform/__tests__/ folder pertain to the activity search interface, not the CR Tool, and should not be moved into the crtool/ folder.

Moved __tests__ folder from crtool folder into teachers_digital_platform folder