cmake LAGraph examples

DrTimothyAldenDavis/SuiteSparse Example/CMakeLists.txt :103 

find_package ( LAGraph 1.2.0 )

GraphBLAS/LAGraph experimental/benchmark/matching-tests/CMakeLists.txt :38 

find_package ( LAGraph 
    PATHS ${LAGRAPH_ROOT}/build NO_DEFAULT_PATH REQUIRED )

jlblancoc/suitesparse-metis-for-windows SuiteSparse/Example/CMakeLists.txt :102 

find_package ( LAGraph 1.1.1 )