cmake HAVE_OPENCV_CUDAFEATURES2D examples

youkely/InfrasCal cmake/LibraryConfig.cmake :81 

check_include_file_cxx(opencv2/cudafeatures2d.hpp HAVE_OPENCV_CUDAFEATURES2D)

youkely/InfrasCal cmake/LibraryConfig.cmake :83 

add_definitions(-DHAVE_OPENCV_CUDAFEATURES2D)