cmake IsoCodes examples

KDE/plasma-workspace applets/digital-clock/plugin/CMakeLists.txt :3 

find_package(IsoCodes)

darktable-org/darktable src/CMakeLists.txt :493 

find_package(IsoCodes 3.66)

fcitx/fcitx5 CMakeLists.txt :150 

find_package(IsoCodes REQUIRED)