New class AIS_PointCloud for displaying point sets.
Update Graphic3d_ArrayOfPoints, OpenGl_PrimitiveArray and OpenGl_VertexBuffer classes to be able to use normals for points.
Add Draw Harness command vpointcloud.
Add test case v3d/point_cloud/sphere.
Move protected method AIS_Shape::DisplayBox() to public function StdPrs_WFDeflectionRestrictedFace::AddBox().
Small correction of grids.list for v3d tests