Add LookupWheelSlip system demo

[iche033]

🎉 New feature

Requires gazebosim/gz-sim#3087

Summary

Add vehicle with LookupWheelSlip system

To test, see the demo description in world sdf file:

    <!-- A vehicle is placed in front of a gravel ramp. It is attached with a
         LookupWheelSlip system that dynamically adjusts the longitudinal slip
         compliance parameters of the wheels based on the location of the
         vehicle. The system uses a look-up slip map that maps to the entire
         warehouse floor. To see the slip region,
           1. Uncomment the warehouse_slip_map_visualization model below
           2. Launch jetty.sdf demo world
           2. Make ramp semi-transparent (right click -> View -> Transparent)
              to reveal the green slip region.

         Publish the following command to move the vehicle up the ramp

         gz topic -t "/model/vehicle_with_wheel_slip/cmd_vel" -m gz.msgs.Twist -p "linear: {x: 1.0}"

         The vehicle should slip as it moves into the slip region.
    -->

Outdated gif:

Update: Replaced vehicle with X1 UGV

Checklist

• Signed all commits for DCO
• Added tests
• Added example and/or tutorial
• Updated documentation (as needed)
• Updated migration guide (as needed)
• Consider updating Python bindings (if the library has them)
• codecheck passed (See contributing)
• All tests passed (See test coverage)
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[azeey]

One minor comment. LGTM otherwise.

[azeey]

Remove?

[iche033]

removed in d02e237