Add stomp default config to moveit_config_utils

[sjahr]

Description

Enables loading stomp config in a launch file like this:

    moveit_config = (
        MoveItConfigsBuilder("moveit_resources_panda")
        .robot_description(file_path="config/panda.urdf.xacro")
        .planning_pipelines(
            pipelines=["stomp"]
        )
        .to_moveit_configs()
    )

Checklist

• Required by CI: Code is auto formatted using clang-format
• Extend the tutorials / documentation reference
• Document API changes relevant to the user in the MIGRATION.md notes
• Create tests, which fail without this PR reference
• Include a screenshot if changing a GUI
• While waiting for someone to review your request, please help review another open pull request to support the maintainers

[codecov]

Codecov Report

Patch coverage: 90.00% and project coverage change: -0.02 ⚠️

Comparison is base (b98bb6b) 50.53% compared to head (ea9991c) 50.50%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2238      +/-   ##
==========================================
- Coverage   50.53%   50.50%   -0.02%     
==========================================
  Files         386      386              
  Lines       31736    31730       -6     
==========================================
- Hits        16034    16022      -12     
- Misses      15702    15708       +6     

Impacted Files	Coverage Δ
moveit_ros/moveit_servo/src/servo_calcs.cpp	71.14% <0.00%> (ø)
...strial_motion_planner/src/trajectory_functions.cpp	100.00% <100.00%> (ø)
...l_motion_planner/src/trajectory_generator_circ.cpp	99.09% <100.00%> (-0.01%)	⬇️
...al_motion_planner/src/trajectory_generator_lin.cpp	94.45% <100.00%> (-0.15%)	⬇️
...anning_scene_monitor/src/current_state_monitor.cpp	74.32% <100.00%> (ø)

... and 3 files with indirect coverage changes

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