[Libvirt-cim] [PATCH 0 of 5] Fix up associations to SBLIM host system

This patch set attempts to patch up our associations for the case where the SBLIM providers are installed and we use them for our HostSystem class. Since that class exists in root/cimv2, we have to register our associations there as well, and make sure they provide paths back to the rest of our providers. The convert_sblim_hostsystem() function that I use to do this is a bit of a hack, given that it requires knowledge of how the reference we're passing to all of our factory functions is used. However, I think it's definitely the easiest thing to do right now. Comments are welcome as usual :)