[DatAgora] Document the process (pipeline) of vizualizing CityGML files within Unity

[EricBoix]

• Conversion CityGML to OBJ/chunks
• Fix the resulting py3dtiles
• Use the Nasa plugin to read those files within Unity

Until things are mature, clone to a private VCityTeam repository the Nasa reader.

[webanck]

@EricBoix @CorentinGaut
This issue is unclear to me. What's the link with DatAgora? Isn't it more tied to the tilers, IMUV or even the DA-POM projects?
To be clear, you are speaking about an undocumented pipeline, not about some code in a branch of an existing repo, right?

[CorentinGaut]

It's about a NASA project to visualize 3DTiles in Unity (project source). We need to test if our 3DTiles are compatible with this code. At the beginning it was a request of GGE in the scope of DatAgora to have a process to take data on datagrandlyon and visualize it in Unity.