Update STOMP Tutorial for MoveIt 2 version (#682)

Author: henningkayser

doc/examples/examples.rst

@@ -73,7 +73,6 @@ Configuration
    custom_constraint_samplers/custom_constraint_samplers_tutorial
    ompl_interface/ompl_interface_tutorial
    chomp_planner/chomp_planner_tutorial
-   stomp_planner/stomp_planner_tutorial
    trajopt_planner/trajopt_planner_tutorial
    planning_adapters/planning_adapters_tutorial
 

doc/examples/stomp_planner/stomp.png

@@ -14,6 +14,7 @@ Configuring and Using MoveIt
    kinematics_cost_function/kinematics_cost_function_tutorial
    moveit_configuration/moveit_configuration_tutorial
    pilz_industrial_motion_planner/pilz_industrial_motion_planner
+   stomp_planner/stomp_planner
    using_ompl_constrained_planning/ompl_constrained_planning
    parallel_planning/parallel_planning_tutorial
    controller_teleoperation/controller_teleoperation