To enable Zaqar to use ceilometer as trace info storage.
Main patch in Zaqar is: I32565de6c447cd5e95a0ef54a9fbd4e571c2d820
New option 'zaqar_control_exchange' is added to allow operator
configures exchange name base on zaqar deployment for its trace
data pushing up.
DocImpact
We prepared a common BP in oslo-spec due to integration change is
similar to all projects: I29a2a59ded9e260a3d3bf79957bd49f403d8e83a
The spec of osprofiler integration for zaqar is:
https://review.openstack.org/#/c/135612/
Change-Id: Ib94f5d4f90956342d5b1ac183ca70179de0505f7
Signed-off-by: Zhi Yan Liu <zhiyanl@cn.ibm.com>