see #josm8281 - add icon for sport=scuba_diving (source: http://www.wpclipart.com/recreation/sports/scuba/scuba_2/scuba_dive.png.html and modified, license: PD)

git-svn-id: http://svn.openstreetmap.org/applications/share/map-icons@30732 b9d5c4c9-76e1-0310-9c85-f3177eceb1e4