Port to Drupal ^10.2 || ^11 || ^12

Problem/Motivation

As a developer running Drupal 10, 11, and/or 12, I want to be able to alter the Operations displayed with database log messages, so that I can add my own Operations.

Proposed resolution

Port the module to Drupal 10, 11, and 12.

Remaining tasks

4. Update these remaining tasks
5. Add a plugin manager for dblog_api plugins.
6. Implement our own plugin to add back the Link field.
7. Replace \Drupal\dblog\Controller\DbLogController::eventDetails() with our own version, so Operations can be altered.
8. Update our \Drupal\dblog\Controller\DbLogController::eventDetails() to call the plugin manager and display operations for each plugin.
9. Replace \Drupal\dblog\Plugin\views\field\DblogOperations with our own views field plugin that always displays something even when there is no value in the field.
10. Update our \Drupal\dblog_api\Plugin\views\field\DblogOperations to call the plugin manager and display operations for each plugin.
11. Make a 2.0.0-beta1 release
12. Test on PHP 7.3 and Drupal 9.4
13. Make a 2.0.0-beta2 release
14. Write automated tests for the new code.
15. Make a full 2.0.0 release
16. Add a README.
17. Add a CHANGELOG.
18. Make a 2.0.1 release.

User interface changes

Hopefully none.

API changes

Use a plugin manager instead of a hook.

Data model changes

I don't think there was a data model before; regardless; hopefully none.