add vertex attrib

Author: shervinazadi

example/CallPython_Source6.hipnc

@@ -19,9 +19,12 @@ def main(points, vertices, prims, detail):
              'P.Y': 0.0,
              'P.Z': 0.0}, ignore_index=True)
 
-    # add atribute
+    # add point atribute
     points['TestAttrib'] = 'abc'
 
+    # add vertex atribute
+    vertices['NV'] = 'testing...'
+
     return (points, vertices, prims, detail)