[Refactoring] Add sorting options to CodeIssuePad.
[Refactoring] Better progress reporting and error handling in the new batch runner.
[Refactoring] Don't analyze projects that are disabled in the current configuration. Fixes Xamarin #14731
[Refactoring] Clear the code issue pad when closing the workspace.

Fixes second part of Xamarin #14730.
[Refactoring] Handle jobs finishing better.