Add onshape model

[Tom0Brien]

This PR adds onshape generated model and the scripts to generate the URDF and proto files. Below is the current output for the .proto file in webots:

To generate the URDF and proto file, simply run onshape-to-robot . inside protos/robot/nugus folder with the config.json file.

URDF generation is achieved with onshape-to-robot

The generated proto has been tested and works with webots controllers such as keyboardwalk.

https://github.com/NUbots/NUWebots/assets/41043317/cdd3e414-612d-4c8e-bd1a-22261e5077a6

TODO

• [ ] Test with robocup world

Improvements needed

• [ ] Tune getup scripts with new bounding boxes, motivates the need for some optimisation routine for this
• [ ] Add dynamic choice between MX-106, MX64 and X-series servos.
• [ ] Improve the generation of optimal bounding boxes, could be solved by as an optimisation problem
• [ ] Add more textures and colours
• [ ] Improve the webots proto generation, current implementation is hacky but works for now using naive string matching, ( may be possible to parse proto using a library )