Some needed additions to bullet-objects (#1)

Add object files for pick and place environment.

Author: Alacarter

roboverse/assets/bullet-objects/ShapeNetCore/ShapeNetCore.v2/02843684/7dd57384aa290a835821cea205f2a4bb/images/texture0.jpg

@@ -0,0 +1 @@
+{"max": [0.12065, 0.290285, 0.051611], "centroid": [0.05079999696969692, 0.15601815151515153, -0.1372631818181819], "id": "7dd57384aa290a835821cea205f2a4bb", "numVertices": 132, "min": [-0.01905, 0.0, -0.2032]}

roboverse/assets/bullet-objects/ShapeNetCore/ShapeNetCore.v2/02843684/7dd57384aa290a835821cea205f2a4bb/models/model_normalized.json

@@ -0,0 +1,13 @@
+# File produced by Open Asset Import Library (http://www.assimp.sf.net)
+# (assimp v3.2.202087883)
+
+newmtl material_0_1_8
+Kd 1 1 1
+Ka 0 0 0
+Ks 0.4 0.4 0.4
+Ke 0 0 0
+d 1
+Ns 10
+illum 2
+map_Kd ../images/texture0.jpg
+