Pending tasks for visualization

[hsd-dev]

from #2 (comment)
TODOs:

• the resource path is hardcoded https://github.com/ipa-hsd/vscode-kinematics-model/blob/533bc9d6aba7d451b67ac305d8c3992f706d5a0e/kinematics/src/extension.ts#L135
  maybe it has to be added to the model?
• supports only meshes. Need to extend it to primitive shapes (box, cylinder, sphere) as well.