add method to create a scalar bar widget
add method to create a scalar bar widget

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