Add an exchange for Trove in profiler notification plugin

To enable Trove to use ceilometer as trace info storage.
Main patch in Trove is: I580cce8d2b3c4ec9ce625ac09de6f14e1249f6f5
Patch in Trove client is: I5a76e11d428c63d33f6d2c2021426090ebf8340c

Change-Id: Idce1c327c6d21a767c612c13c1ad52a794017d71
Signed-off-by: Zhi Yan Liu <zhiyanl@cn.ibm.com>
Merge "Add an exchange for Trove in profiler notification plugin"