[libvirt] [PATCH 00/10] Enable loadable modules for libvirtd

For a long timer we've had the ability to build each libvirt driver as a loadable module. We have never used this by default and as a result it constantly bit-rots. This series fixes various bugs, and then enables it by default in configure. It also makes the PRMs use the loadable modules, adding new new sub-RPMs for each module. We can now finally install minimal libvirt binaries for each hypervisor. ie yum install libvirt-kvm will not pull in Xen libraries!