[MPMD-181] Add flag to capture Benchmark information
Submitted by: Anthony Whitford
Reviewed by: Dennis Lundberg

- I adjusted the code to comply with our code style
- I also added a couple of ITs

git-svn-id: https://svn.apache.org/repos/asf/maven/plugins/trunk@1576238 13f79535-47bb-0310-9956-ffa450edef68