New features

Initial release. I consider this feature complete, but there is still some code in a few files that I think is unnecessary, so creating an alpha release until I can do more cleanup, linting, etc.

This updates the theme to support version 2.0.1 of the USWDS standards. https://v2.designsystem.digital.gov/about/releases/

Changes since 8.x-2.0-alpha1

Poptin module for Drupal 8

• renamed the view
• moved the preprocessed view of the product as extra field definition

First release
Just basic working copy.