Update example controllers

...xample_controllers/config/franka_example_controllers.yaml

...a_example_controllers/joint_position_example_controller.h

...a_example_controllers/joint_velocity_example_controller.h

...lers/launch/cartesian_impedance_example_controller.launch

...ntrollers/launch/cartesian_pose_example_controller.launch

...llers/launch/cartesian_velocity_example_controller.launch

...xample_controllers/launch/force_example_controller.launch

...trollers/launch/joint_impedance_example_controller.launch

...ntrollers/launch/joint_position_example_controller.launch

...ntrollers/launch/joint_velocity_example_controller.launch

...xample_controllers/launch/model_example_controller.launch

...ntrollers/launch/rviz/franka_description_with_marker.rviz

franka_example_controllers/scripts/interactive_marker.py

...ple_controllers/src/joint_position_example_controller.cpp

...ple_controllers/src/joint_velocity_example_controller.cpp