OAK-1702 - Create a benchmark for Full text search

-- Added two new fixtures Oak-Mongo-FDS, Oak-Tar-FDS
-- FullTextSearchTest benchmarks full text query performance
-- Two profile added to pom.xml to create oak-run with lucene3 (oak-run-jr2) and lucene4(oak-run-oak) jars

git-svn-id: https://svn.apache.org/repos/asf/jackrabbit/oak/trunk@1585896 13f79535-47bb-0310-9956-ffa450edef68