cmake double-conversion examples

milvus-io/knowhere cmake/libs/libdiskann.cmake :8 

find_package(double-conversion REQUIRED)

facebookincubator/velox CMakeLists.txt :681 

find_package(double-conversion 3.1.5 REQUIRED)

qt/qtbase cmake/FindWrapSystemDoubleConversion.cmake :17 

find_package(double-conversion ${${CMAKE_FIND_PACKAGE_NAME}_FIND_VERSION} QUIET)

InsightSoftwareConsortium/ITK Modules/ThirdParty/DoubleConversion/CMakeLists.txt :10 

find_package(double-conversion 3.1.6 REQUIRED)