cmake OpenNi examples

fzi-forschungszentrum-informatik/gpu-voxels packages/gpu_voxels/CMakeLists.txt :45 

FIND_PACKAGE(OpenNi)

pamela-project/slambench framework/shared/CMakeLists.txt :143 

find_package(OpenNI)

phdsky/ORBSLAM24Windows Thirdparty/Pangolin/src/CMakeLists.txt :346 

find_package(OpenNI QUIET)

ucla-vision/xivo thirdparty/Pangolin/src/CMakeLists.txt :433 

find_package(OpenNI QUIET)