OAK-1504 Create benchmark tests to measure effect of mod_count and everyone cache

git-svn-id: https://svn.apache.org/repos/asf/jackrabbit/oak/trunk@1574730 13f79535-47bb-0310-9956-ffa450edef68
@trivial ignore csv output

git-svn-id: https://svn.apache.org/repos/asf/jackrabbit/oak/trunk@1574731 13f79535-47bb-0310-9956-ffa450edef68