ANY23-26 part1 - Improvement to spi-extractors

git-svn-id: https://svn.apache.org/repos/asf/any23/trunk@1435720 13f79535-47bb-0310-9956-ffa450edef68
ANY23-26 part2 - Remove deprecated tests and plugins classes for spi-extractor improvements

git-svn-id: https://svn.apache.org/repos/asf/any23/trunk@1435724 13f79535-47bb-0310-9956-ffa450edef68
ANY23-26 part3 - upgrade of Tika dependency

git-svn-id: https://svn.apache.org/repos/asf/any23/trunk@1435729 13f79535-47bb-0310-9956-ffa450edef68