adding artifact ability to drush

I am trying to make developers understand the beauty and importance of having a CI server run simpletests on a given project. The problem is that when we run tests locally through the GUI, we have a nice themed report screen and verbose messages. When Jenkins runs the tests, we have XML output which may seem dry to some people.

The idea here is to be able to run something like:

    drush test-run --artifacts=my/artifacts/directory test_group

Your CI server can then archive the contents as my/artifacts/directory for each build, and it contains a themed test status report, verbose messages, and all the css required to view the HTML source.