before:
```
8.9M robots/asr_twodof_description/qb_meshes/dae/qbmove_frame_m.dae
7.2M robots/baxter_description/meshes/electric_gripper/electric_gripper_w_fingers.DAE
4.9M robots/baxter_description/meshes/torso/base_link.DAE
 88M robots/go1_description/meshes/trunk.dae
```

after:
```
1.7M robots/asr_twodof_description/qb_meshes/dae/qbmove_frame_m.dae
2.2M robots/baxter_description/meshes/electric_gripper/electric_gripper_w_fingers.DAE
2.6M robots/baxter_description/meshes/torso/base_link.DAE
 28M robots/go1_description/meshes/trunk.dae
```

* added Articulated soft robot loader and description

* removed the unneccesary files and the deprecated loader function

* added license and readme

* renamed the readme file and added these files in twodof robot description

* remove use less file

* remove useless file

* Update test_load.py

* removed useless folder and plugins from the urdf

Co-authored-by: Justin Carpentier <justin.carpentier@inria.fr>