scripturefilter 2.0.0

Version 2.0.0 is the first release on the 2.0.x branch. This is basically the same as the -dev release formerly on 8.x-1.x, although that branch never had any tagged releases due to insufficient testing. This module is now tested fully against Drupal 8 and Drupal 9, and is compatible with both. This first tagged release for Drupal Core 8 and 9 is on a new branch to allow us to move away from the 8.x- naming to the new semver style approach that allows one release to work with both Drupal 8 and Drupal 9.