Versions capture #820
Description
In order for testing results to be of any use, we need to know:
- what version of the tests are being run
- what versions of the system under test are being exercised
Capturing this information is very implementation-specific, but it'd be good to provide an api hook for doing that work and a place in execution reports where version data could be presented.
Keep #868 in mind - presentation of results metadata is closely related