[Libvirt-cim] [PATCH 0 of 9] Reorganized association provider registration

The association provider was registered for each subclass with a different name. That caused duplicated instances as the same provider gets called twice, but has no chance to figure out for which registration. This patch set tries to fix it. Please review. Thanks. Based on: - #2 Fix (again) VSMCaps and ElementCap - Remove devid-style InstanceID support from ELEC and EC