Enable like any other module.
MYDIGIPASS.COM tokens will be available in all places where tokens are enabled.
For security and usability reasons, only the tokens enabled on admin/config/services/mydigipass/user_data_fields can be used.
The Champion distribution is a boilerplate for building webcomponent based solutions in Drupal. It's an attempt to make Drupal THE number 1 solution / workflow for developing with webcomponents. While not requiring Polymer, a lot of the tooling of Polymer helps influence the webcomponents module which this is dependent upon.