Update segmentation_and_grasp.ipynb

[dvogureckiy99]

there was error in environment_diagram, environment_context = ClutteredSceneSystem().

NameError                                 Traceback (most recent call last)
<ipython-input-6-eb591399c588> in <module>
     52 
     53 
---> 54 environment_diagram, environment_context = ClutteredSceneSystem()
     55 cameras = []
     56 cameras.append(

<ipython-input-5-a3df6898788c> in ClutteredSceneSystem()
      5     plant, scene_graph = AddMultibodyPlantSceneGraph(builder, time_step=0.0)
      6     parser = Parser(plant)
----> 7     ConfigureParser(parser)
      8     parser.AddModelsFromUrl(
      9         "package://manipulation/segmentation_and_grasp_scene.dmd.yaml"

NameError: name 'ConfigureParser' is not defined

and we should add ConfigureParser module.

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This change is 

[dvogureckiy99]

exercises/segmentation/segmentation_and_grasp.ipynb line 69 at r1 (raw file):

    "from manipulation.utils import AddPackagePaths, LoadDataResource\n",
    "\n",
    "from manipulation import ConfigureParser"

I added this line, am I right ?