[Python] Added example of loading and displaying romeo.

python/display.py

+import unittest
+import pinocchio as se3
+import numpy as np
+
+from pinocchio.robot_wrapper import RobotWrapper
+
+# Warning : the paths are here hard-coded. This file is only here as an example
+list_py = ["/local/fvalenza/devel/src/pinocchio/models","titi"]
+robot = RobotWrapper("/local/fvalenza/devel/src/pinocchio/models/romeo.urdf",list_py, se3.JointModelFreeFlyer())
+
+robot.initDisplay()
+robot.loadDisplayModel("world/pinocchio")
+
+q0 = np.matrix([
+    0, 0, 0.840252, 0, 0, 0, 1,  # Free flyer
+    0, 0, -0.3490658, 0.6981317, -0.3490658, 0,  # left leg
+    0, 0, -0.3490658, 0.6981317, -0.3490658, 0,  # right leg
+    0,  # chest
+    1.5, 0.6, -0.5, -1.05, -0.4, -0.3, -0.2,  # left arm
+    0, 0, 0, 0,  # head
+    1.5, -0.6, 0.5, 1.05, -0.4, -0.3, -0.2,  # right arm
+]).T
+
+robot.display(q0)
+