Ooooh n/m I scrolled down, now see what's going on here.  I don't think we want this (unless u have a good reason).

I didn't make subtests a package because I wanted to treat all subtests as semi-standalone "plugins" as opposed actual python modules.  This ensures they have ZERO chance of them stepping on each-other.  The same thing goes for sub-subtests.  This also helps to enforce there can be no dependencies between tests which is important to be able to support ad-hoc/add-on private tests.

Though let me know if you have a good reason/argument for opening this up.