[Libvirt-cim] [PATCH 0 of 7] #2 - Adopt get_() common look and feel to DevicePool and Adopted interface changes to assocs

Adopted the get_() function look and feel to the DevicePool provider. Updated the association providers that uses these functions. Diff to patch set 1: - patch #1 (svpc_types) - add Resource Pool types to svpc_types.h and map existing types to base resource types - patch #2 (DevicePool) - implement configurable enum_pools() function; adopt resource types - patch #6 (EAFP) - adopt resource types; validate client given device ref - patch #7 (AC) - adopt DevicePool interface changes; updated NOT_FOUND error message to be consistent with others