added visualization of point cloud used to generate octree
added visualization of point cloud used to generate octree

gizatt/director,mithrandir123/director,RussTedrake/director,manuelli/director,mitdrc/director,mitdrc/director,openhumanoids/director,manuelli/director,mitdrc/director,rdeits/director,RobotLocomotion/director,patmarion/director,empireryan/director,edowson/director,empireryan/director,patmarion/director,mithrandir123/director,manuelli/director,RobotLocomotion/director,rdeits/director,rdeits/director,empireryan/director,gizatt/director,gizatt/director,edowson/director,mithrandir123/director,mitdrc/director,gizatt/director,empireryan/director,RussTedrake/director,RobotLocomotion/director,rdeits/director,mithrandir123/director,mitdrc/director,RobotLocomotion/director,openhumanoids/director,mithrandir123/director,empireryan/director,gizatt/director,rdeits/director,openhumanoids/director,RussTedrake/director,patmarion/director,patmarion/director,RussTedrake/director,manuelli/director,edowson/director,patmarion/director,RussTedrake/director,edowson/director,openhumanoids/director,RobotLocomotion/director,manuelli/director,edowson/director,openhumanoids/director