cmake dlib examples

lrse/sptam cmake-modules/dependencies.cmake :54 

find_package(DLib REQUIRED)

openturns/openturns CMakeLists.txt :295 

find_package (dlib 19.8 CONFIG)

gadgetron/gadgetron test/performance/CMakeLists.txt :1 

find_package(dlib)

dengyueyun666/Image-Contrast-Enhancement CMakeLists.txt :8 

find_package(dlib REQUIRED)

norihiro/obs-face-tracker CMakeLists.txt :53 

find_package(dlib REQUIRED)