Loading .obj files as model

[Napolitain]

Is your feature request related to a problem? Please describe.
We currently have to hard code the models, such as a cube. To load more complex models, we should be able to load .obj files exported from softwares such as Blender.

Describe the solution you'd like
An utility function should be able to parse an obj file.

Describe alternatives you've considered
None

Additional context
None