vmTests: split data to another module

As suggested by Maciej and promised to Vinzenz in
http://gerrit.ovirt.org/14111
Also, bury the turm "libvirtvm".

Change-Id: I2685d296784e315b8705349893894992a615b2bd
Signed-off-by: Dan Kenigsberg <danken@redhat.com>
Reviewed-on: http://gerrit.ovirt.org/15981
Reviewed-by: Giuseppe Vallarelli <gvallare@redhat.com>
Reviewed-by: Maciej Lichon <maciej.lichon.wroclaw@gmail.com>