According to Openstack summit session , stestr is maintained project
to which all Openstack projects should migrate. Let's switch to stestr
as other projects have already moved to it.
Adds the basics of the new os-capabilities library, including a README
and a couple helper functions that allow the user to list both symbol
names as well as the capability strings themselves.
Added x86 CPU instruction set extensions as an initial set of namespaced
standardized capability strings.