more cleanup

--HG--
rename : raven_pose_estimator/scripts/color_gripper_segmenter.new => raven_pose_estimator/scripts/color_gripper_segmenter
rename : raven_pose_estimator/scripts/bgm_segmenter => raven_pose_estimator/scripts/foam_segmenter
rename : raven_pose_estimator/scripts/Util.py => raven_pose_estimator/src/raven_pose_estimator/util.py