[PP-2] Declare upgrade status from D7

I was a little surprised to see Pathauto listed under "Modules that will not be upgraded" on Migrate Drupal's "What will be upgraded?" page ... it would be fantastic if it got an upgrade path, considering that the majority of Drupal 7 sites are probably using Pathauto.

Actually, the patterns do get migrated under /admin/config/search/path/patterns, so it works even, though it says it doesn't :-)

I am happy to report that I was able to upgrade my drupal-7.99 site running pathauto-7.x-1.3 to a drupal-10.2.1 site running pathauto-8.x-1.12; and that the migration code already in the D10 version of the module was able to migrate my Pathauto patterns. Hopefully, my success will help other people migrating D7 to D10.

However, now that my D7 to D10 site migration is complete, my ability to contribute further to this issue is severely limited, because the D7 site that I had been using to test has been retired. But, I'll keep an eye on this issue and try to answer questions to the best of my ability.