Bit more test data, this time with complete info copied, mainly with
cache information, so we can easily add tests for it.
Signed-off-by: NMartin Kletzander <mkletzan@redhat.com>

Move all APIs with a virHostCPU name prefix out into new
util/virhostcpu.h & util/virhostcpu.c files
Signed-off-by: NDaniel P. Berrange <berrange@redhat.com>

This makes sure CPUs are counted correctly when using the default
configuration, that is, all primary threads are online and all
secondary threads are offline.