virt-libvirt: Extend test-runner default tests

This is related to #997.  I'm not completely happy about just **splat** the big list of tests into the runner script.  If anyone has a better idea, I'm all ears.  Also I'm open to changes/additions in the list.  I arrived at it mostly by trimming down John's list in #997 to just two tests per type.

Note: I commented out 5 tests temporarily, and added links to open issues.