Add Phantoman to list of 3rd Party Extensions

Phantoman is a newer Codeception extension responsible for automatically starting and stopping PhantomJS around tests. PhantomJS is spun up before test run and stopped afterwards. This extension works really well with PHPBuiltinServer to make a fully self contained testing package.
Merge pull request #33 from grantlucas/patch-1

Add Phantoman to list of 3rd Party Extensions