fix inheritance of MeshFeaturePy fix inheritance of PartFeaturePy remove useless test() method implement getPyObject in GeoFeature in case a sub-class doesn't implement it
git-svn-id: https://free-cad.svn.sourceforge.net/svnroot/free-cad/trunk@5000 e8eeb9e2-ec13-0410-a4a9-efa5cf37419d