please make one repo ; vtk-examples/Python/Modelling/ExtractLargestIsosurface

[Bangash514]

Data is available at:

test.vtk: http://web.kaist.ac.kr/~hjy/test.vtk

brainweb.img: http://web.kaist.ac.kr/~hjy/brainweb.img

brainweb.hdr: http://web.kaist.ac.kr/~hjy/brainweb.hdr

Second and third datasets can be downloaded from BrainWeb, which is free of charge in use for a research. "test.vtk" was converted from "brainweb.img" using a program by Erik Vidholm (http://www.cb.uu.se/~erik/vtk/rawToVTK.cpp).