Update ur5_controllers.yaml
Update ur5_controllers.yaml

revised controller names to be consistent between all models and readme suggestions
UniversalRobots/Universal_Robots_Client_Library,smart-robotics/ur_modern_driver,UniversalRobots/Universal_Robots_Client_Library,Zagitta/ur_modern_driver,ThomasTimm/ur_modern_driver,ThomasTimm/ur_modern_driver,Zagitta/ur_modern_driver,Zagitta/ur_modern_driver,smart-robotics/ur_modern_driver