SLING-2593 - Improvement for the Sling performance tools. Adding first part of the patch provided from Christian Vazzolla:  Created a new maven project that contains only the sling performance tests and left the framework(tool) related part in the base project as we would like to use the framework for performance testing in other projects also. Thanks Christian! 

git-svn-id: 13f79535-47bb-0310-9956-ffa450edef68
17 files changed