io:
 - readPoints: reading normals from normal cloud to vector<pointprimitive> from now

segmentation:
 - patchify:   added refit to regiongrow output (average in 2D, refit in 3D, similar results to avg in 3D)
 - regionGrow: reduced neighbourhood lookup size to scale (from 3.5* used in hough-ellipse mode)
 - regionGrow: FIXED angle difference calculation  (180 vs. 0)
 - segmentCli: oriented cloud is saved as cloud.ply, and cloud.ply backed up as cloud.ply.orig, if does not exist
commented unused warning "closest_angle"
CMakeLists:
 - added visualizer.hpp to cmakelist
visualizer.hpp
 - added "--normals", "--angle-gens", "--no-pop" options to showCli
 - changed population display to "(pop), gid, dir" format
Merge branch 'master' of https://github.com/amonszpart/globOpt