Add kochv1.1 updated version of Alex koch low-cost robot arm

[s1lent4gnt]

I reviewed the mujoco_menagerie repository and noticed there isn’t a model for a low-cost robot arm.

To address this, I created a URDF file for a low-cost robotic arm using SolidWorks parts from the Kochv1.1 project.

• URDF Model: You can view the URDF file for the arm here: follower.urdf.
• License: The model is provided under the Apache-2.0 License.
• MJCF Conversion: I have converted the URDF model into MJCF format. All related files are available here: low_cost_robot_arm files.

Are you proposing to help develop and maintain the new model?
Yes, I am willing to help develop and maintain the new model.