Port request: webform_encrypt, webform_ssn

[jenlampton]

Name of the module, theme, or layout

1. ~Encrypt~
2. Webform Encrypt
3. Webform SSN

Link to the drupal.org module, theme, or layout

1. ~https://www.drupal.org/project/encrypt~
2. https://www.drupal.org/project/webform_encrypt
3. https://www.drupal.org/project/webform_ssn

(Optional) Link to an issue in the drupal.org queue asking the Drupal community if anyone is working on a Backdrop port of this project @todo

[oadaeh]

There is this: https://github.com/backdrop-ops/contrib/issues/570