add example of faster URDF/SDF loading in VR/GUI mode,

by temporary disabling rendering

examples/pybullet/examples/loadingBench.py

@@ -0,0 +1,28 @@
+import pybullet as p
+import time
+p.connect(p.GUI)
+
+p.resetSimulation()
+timinglog = p.startStateLogging(p.STATE_LOGGING_PROFILE_TIMINGS, "loadingBenchVR.json")
+p.configureDebugVisualizer(p.COV_ENABLE_RENDERING,0)
+print("load plane.urdf")
+p.loadURDF("plane.urdf")
+print("load r2d2.urdf")
+
+p.loadURDF("r2d2.urdf",0,0,1)
+print("load kitchen/1.sdf")
+p.loadSDF("kitchens/1.sdf")
+print("load 100 times plate.urdf")
+for i in range (100):
+	p.loadURDF("dinnerware/plate.urdf",0,i,1)
+
+p.configureDebugVisualizer(p.COV_ENABLE_RENDERING,1)
+
+p.stopStateLogging(timinglog)
+print("stopped state logging")
+p.getCameraImage(320,200)
+
+while (1):
+	p.stepSimulation()
+
+