VTK setup in windows

This is the step-by-step guide towards installing VTK in windows. You will require visual studio and cmake for the compilation. I have also shown how to compile an example using the VTK library. Issues: sometimes, the VTK libraries are not installed in program files, in that case, they will be in "path-to-vtkbinbindebug" so you can add that path to the system path variable instead.