test: Allow specifying object runstate in driver XML
test: Allow specifying object runstate in driver XML

When passing in custom driver XML, allow a block like

<domain xmlns:test='http://libvirt.org/schemas/domain/test/1.0'>
  ...
  <test:runstate>5</test:runstate>
</domain>

This is only read at initial driver start time, and sets the initial
run state of the object. This is handy for UI testing.

It's only wired up for domains, since that's the only conf/
infrastructure that supports namespaces at the moment.

andreabolognani/libvirt,olafhering/libvirt,cbosdo/libvirt,andreabolognani/libvirt,zippy2/libvirt,jardasgit/libvirt,eskultety/libvirt,taget/libvirt,datto/libvirt,elmarco/libvirt,elmarco/libvirt,elmarco/libvirt,olafhering/libvirt,cbosdo/libvirt,fabianfreyer/libvirt,jardasgit/libvirt,fabianfreyer/libvirt,crobinso/libvirt,taget/libvirt,elmarco/libvirt,eskultety/libvirt,nertpinx/libvirt,jfehlig/libvirt,crobinso/libvirt,rlaager/libvirt,zippy2/libvirt,taget/libvirt,agx/libvirt,rlaager/libvirt,eskultety/libvirt,andreabolognani/libvirt,nertpinx/libvirt,cbosdo/libvirt,elmarco/libvirt,VenkatDatta/libvirt,jfehlig/libvirt,shugaoye/libvirt,zhlcindy/libvirt-1.1.4-maintain,libvirt/libvirt,shugaoye/libvirt,agx/libvirt,crobinso/libvirt,olafhering/libvirt,zippy2/libvirt,taget/libvirt,eskultety/libvirt,zhlcindy/libvirt-1.1.4-maintain,shugaoye/libvirt,jfehlig/libvirt,datto/libvirt,cbosdo/libvirt,zhlcindy/libvirt-1.1.4-maintain,nertpinx/libvirt,libvirt/libvirt,jardasgit/libvirt,andreabolognani/libvirt,jfehlig/libvirt,VenkatDatta/libvirt,VenkatDatta/libvirt,andreabolognani/libvirt,nertpinx/libvirt,rlaager/libvirt,rlaager/libvirt,zhlcindy/libvirt-1.1.4-maintain,shugaoye/libvirt,shugaoye/libvirt,zhlcindy/libvirt-1.1.4-maintain,fabianfreyer/libvirt,libvirt/libvirt,rlaager/libvirt,datto/libvirt,datto/libvirt,libvirt/libvirt,olafhering/libvirt,cbosdo/libvirt,agx/libvirt,nertpinx/libvirt,eskultety/libvirt,fabianfreyer/libvirt,zippy2/libvirt,jardasgit/libvirt,jardasgit/libvirt,crobinso/libvirt,VenkatDatta/libvirt,datto/libvirt,agx/libvirt,taget/libvirt,agx/libvirt,fabianfreyer/libvirt,VenkatDatta/libvirt