Update panda controller filenames

[AndyZe]

This PR should be merged along with these PR's in other repos:

moveit_resources: moveit/moveit_resources#127
moveit_tutorials: moveit/moveit2_tutorials#343 (comment)

@DLu is leading the charge on this, but I think the idea is to give the arm and the gripper a standard name that makes sense and can be used by Jafar's simplified launch module. Previously both MoveIt and ros_control config files were often named controller.yaml.

[codecov]

Codecov Report

Merging #1163 (e01754e) into main (99939d3) will increase coverage by 1.27%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             main    #1163      +/-   ##
==========================================
+ Coverage   59.76%   61.03%   +1.27%     
==========================================
  Files         274      274              
  Lines       24749    24749              
==========================================
+ Hits        14789    15102     +313     
+ Misses       9960     9647     -313     

Impacted Files	Coverage Δ
..._core/collision_detection/src/collision_common.cpp	50.00% <0.00%> (-50.00%)	⬇️
...e/collision_detection_fcl/src/collision_common.cpp	73.76% <0.00%> (+0.23%)	⬆️
moveit_core/robot_state/src/robot_state.cpp	47.28% <0.00%> (+0.32%)	⬆️
moveit_core/planning_scene/src/planning_scene.cpp	48.84% <0.00%> (+0.59%)	⬆️
moveit_ros/moveit_servo/src/servo_calcs.cpp	67.40% <0.00%> (+2.53%)	⬆️
...or/src/current_state_monitor_middleware_handle.cpp	88.24% <0.00%> (+5.89%)	⬆️
moveit_ros/moveit_servo/src/collision_check.cpp	86.16% <0.00%> (+6.16%)	⬆️
...nning_scene_monitor/src/planning_scene_monitor.cpp	46.50% <0.00%> (+6.57%)	⬆️
moveit_ros/moveit_servo/src/servo.cpp	75.00% <0.00%> (+12.50%)	⬆️
...anning_scene_monitor/src/current_state_monitor.cpp	75.70% <0.00%> (+20.32%)	⬆️
... and 4 more

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[vatanaksoytezer]

Seems something wrong with rmw implementation in testing. Will investigate

    [unittest_planning_context-1] terminate called after throwing an instance of 'rclcpp::exceptions::RCLError'
    [unittest_planning_context-1]   what():  failed to initialize rcl init options: failed to load any RMW implementations, at ./src/functions.cpp:125, at ./src/rcl/init_options.c:75
    ```

[vatanaksoytezer]

Until this PR get merged, everything will be blocked since we merged the moveit_resources PR, which is breaking. If we can't resolve the CI issue in testing, I will add a specific version of moveit_resources.

[DLu]

I could not replicate this test failure on focal.

[vatanaksoytezer]

Working on some fixes here: vatanaksoytezer#26

[vatanaksoytezer]

Merged with #1170.