cmake RAJA examples

LLNL/SAMRAI cmake/thirdparty/SetupSAMRAIThirdParty.cmake :32 

find_package(RAJA REQUIRED)

boutproject/BOUT-dev cmake/SetupBOUTThirdParty.cmake :51 

find_package(RAJA REQUIRED)

LLNL/hiop CMakeLists.txt :289 

find_package(RAJA CONFIG
    PATHS ${RAJA_DIR} ${RAJA_DIR}/share/raja/cmake
    REQUIRED)