Dynamic memory allocation in the joint trajectory controller

[AndyZe]

Here are some spots of dynamic memory allocation in the realtime update method of the JTC we should try to get rid of:

In fill_partial_goal():

ros2_controllers/joint_trajectory_controller/src/joint_trajectory_controller.cpp

Line 1084 in d8d6616

trajectory_msg->joint_names.push_back(joint_names_[index]);

And several other places.

In sort_to_local_joint_order():

output.resize(mapping.size(), 0.0);

[github-actions]

This issue is being labeled as stale because it has been open 45 days with no activity. It will be automatically closed after another 45 days without follow-ups.

[christophfroehlich]

Needs an evaluation if there are still places with dynamic memory allocation.