ROS2 URDF Gazebo Sensor

Bumper part 2

<!-- Add chassis and inertial link -->
<link name="chassis">
    <interial>
        <xacro:chassis_inertial_params/>
    </interial>
    <visual>
        <xacro:chassis_geometry/>
        <material name="white" />
    </visual>
    <collision name="chassis_collision">
        <xacro:chassis_geometry/>
    </collision>
</link>