Containing implementation of new JoinConnect, as well as new splitting tools: BooleanFragments, Slice and XOR.
Attributions: Mark (quick61) - icons Yorik - help with internationalization Everyone who appeared in forum thread "A new Part tool is being born... JoinFeatures!" - for endorsement! http://forum.freecadweb.org/viewtopic.php?f=22&t=11112
git-svn-id: https://free-cad.svn.sourceforge.net/svnroot/free-cad/trunk@5000 e8eeb9e2-ec13-0410-a4a9-efa5cf37419d