An integration of Vaadin 14, LitElemnet, zxcvbn and polymer-password-strength. Compiled by Java 11. * zxcvbn is embeded within this addon. [zxcvbn](https://github.com/dropbox/zxcvbn) is a password strength estimator inspired by password crackers. * [zxcvbn4j](https://github.com/nulab/zxcvbn4j) is a java port of zxcvbn. Your [donation](https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=Q6H3YAQCWHMM4&source=url) makes the addon much better, thanks for all your support.