cmake CIRCLE examples

InsightSoftwareConsortium/ITK Modules/ThirdParty/HDF5/src/itkhdf5/CMakeLists.txt :1049 

find_package(CIRCLE REQUIRED)

Kitware/VTK ThirdParty/hdf5/vtkhdf5/CMakeLists.txt :1135 

find_package(CIRCLE REQUIRED)

HDFGroup/hdf5 CMakeLists.txt :1139 

find_package (CIRCLE REQUIRED)