cmake tf2_msgs examples

PlotJuggler/plotjuggler-ros-plugins CMakeLists.txt :10 

find_package(tf2_msgs REQUIRED)

stella-cv/stella_vslam_ros CMakeLists.txt :128 

find_package(tf2_msgs REQUIRED)

MRPT/mrpt cmakemodules/script_ros.cmake :79 

find_package(tf2_msgs QUIET)