vcpkg/ports/vtk/FindGDAL.cmake, branch 2020.04

vcpkg/ports/vtk/FindGDAL.cmake, branch 2020.04 Forked from https://github.com/microsoft/vcpkg [vtk] improve portfile: 2017-08-28T08:48:30+00:00 Albert Ziegenhagel albert.ziegenhagel@outlook.com 2017-08-28T08:48:30+00:00 d7a313c5c356e1641f18cd14ad0ac0c3901bc0bf - Use system libharu - Simplyfy enabling/disabling optional modules of VTK - Add options to build VTK python modules or all VTK modules

- Use system libharu
- Simplyfy enabling/disabling optional modules of VTK
- Add options to build VTK python modules or all VTK modules