based on question from mailing list: http://apache-poi.1045710.n5.nabble.com/PPTX-how-to-get-the-marked-list-with-adjacent-icons-tp5734952.html git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1875328 13f79535-47bb-0310-9956-ffa450edef68