Addresses UR5 model display issue

[kumar-sanjeeev]

This PR addresses the issue of the UR5 model display.

• added the ur10 model to the ur_description directory.
• removed ur5_description and updated ur_description to accommodate all UR models.

[sea-bass]

Thank you! Few things for initial review:

1. Thanks for fixing those docs API sections. Would you be willing to split that into a separate PR?
2. You can just delete that UR5 example and leave the UR10
3. The UR on base example at https://github.com/sea-bass/pyroboplan/blob/main/examples/differential_ik_whole_body.py will also need to be updated for the UR10.

[sea-bass]

Should ur10 now also be here?

[kumar-sanjeeev]

Thanks for pointing this out. I am fixing the docs in a separate PR and will address this issue there.

[kumar-sanjeeev]

Thank you! Few things for initial review:

1. Thanks for fixing those docs API sections. Would you be willing to split that into a separate PR?
2. You can just delete that UR5 example and leave the UR10
3. The UR on base example at https://github.com/sea-bass/pyroboplan/blob/main/examples/differential_ik_whole_body.py will also need to be updated for the UR10.

1. Nice suggestion. I will fix them in a separate PR.
2. I deleted intro_pinocchio_ur5_sim.py, is this what you meant?
3. I created a separate utility module for UR10 and modified differential_ik_whole_body example accordingly. As of now UR5 utility module is still present. Do you want to keep it?

If all the changes are okay, I will submit another PR to fix the documentation after your feedback.

[sea-bass]

Tested the examples and they work and look great -- thank you!

[kumar-sanjeeev]

Tested the examples and they work and look great -- thank you!

Thanks for pointing out typos. Now its fixed.

As discussed, I have added another PR #80 for fixing docs.