common: Introduce CPU profile

CpuProfile contains common profile fields (extends profile base: qos, name, desc, etc.)
and cluster which its attached to.

Change-Id: I4d4a1926d0ad99557d4752bc81e572b499577c9d
Bug-Url: https://bugzilla.redhat.com/1084930
Signed-off-by: Gilad Chaplik <gchaplik@redhat.com>