update to change of path of display_tools script

script/tools/surfaces_from_path.py

 from numpy import arange, array
 from pinocchio import Quaternion,SE3,XYZQUATToSe3
 from tools.narrow_convex_hull import getSurfaceExtremumPoints, removeDuplicates, normal, area
-from tools.display_tools import displaySurfaceFromPoints
+from hpp.corbaserver.rbprm.tools.display_tools import displaySurfaceFromPoints
 import numpy as np
 from pinocchio import Quaternion, log3
 import eigenpy