Trace and document origin of `.wrl` models

[jgvictores]

Trace and document origin of .wrl models as of current develop (https://github.com/roboticslab-uc3m/teo-openrave-models/tree/eb18940718627db56a7e3ce3f1ee070a4a925c94/openrave).

Notes:

• These files, which are the lightweight versions, have been here since the second commit of the repository: https://github.com/roboticslab-uc3m/teo-openrave-models/commit/a0f64bda0394452d2a3f7aaba807abd5db47bb8c
  • 0.0^cabeza_links.wrl = AxialNeck.wrl = 6126 = 6,0K
  • 0.1^cabeza_links.wrl = FrontalNeck.wrl = 132522 = 130K
• They are much lighter than their heavy .wrl counterpart at: /TEOrepo/mechanics/Model/Conversions/Version 2016/VRML/Cabeza = /TEOrepo/mechanics/Model/Conversions/Version 2017/VRML/Cabeza (yes, they are dupe):
  • S3_neck.wrl = 98689 = 97K
  • S3_Head.wrl = 1707381 = 1,7M

Additional notes:

• https://github.com/roboticslab-uc3m/teo-openrave-models come from https://github.com/roboticslab-uc3m/kinematics-dynamics (when it was called teo-main), but tractability is difficult due to https://github.com/roboticslab-uc3m/kinematics-dynamics/issues/84 "Cleaning big file history".
• I cannot find the specific issue where we reduced the sizes. cc: @munozyanez Not sure if you did it or maybe remember?

Affects:

• Definitely would help before doing https://github.com/roboticslab-uc3m/teo-openrave-models/issues/41 "TEO missing links", so marking as blocked by this one.
• Possibly https://github.com/roboticslab-uc3m/teo-openrave-models/issues/28 "Update forearm link" (I'll add a comment there).

[jgvictores]

Found something about teoLowres/ at https://github.com/roboticslab-uc3m/kinematics-dynamics/pull/30

[jgvictores]

"add openrave/teoLowres" at https://github.com/roboticslab-uc3m/kinematics-dynamics/commit/f3df8454d3c847862844694b85764cb01f9eaf09