[Windows] Building a plugin against the superbuild requires to set cmake variables about OpenVR and HoloPlayCore
When compiling a plugin against paraview superbuild in windows, build with OpenVR, with
ParaView_DIR = pvsvb/build/install/lib/cmake/paraview-5.7
cmake fails to find OpenVR related cmake var, and they have to be set manually :
OpenVR_INCLUDE_DIR
OpenVR_LIBRARYIssue is the same with HoloPlayCore
Edited by Mathieu Westphal (Kitware)