Update tutorials for Unreal Engine 5+

[j9liu]

Most of our tutorials were written during development with Unreal Engine 4.26 / 4.27. They mostly translate to Unreal Engine 5, but there are some UX differences that may be confusing for users. For instance, while following the Building a VR Application, I could not get the VR Preview to work because of a plugin that needs to be enabled manually in UE5.

It would be good to go through and update all of our tutorials for UE5, for clarity and correctness. Having newer screenshots will reduce confusion with UI differences as well.

[j9liu]

As of the official release, we have updated:

• Quickstart
• Adding datasets
• Placing objects on the globe
• Sublevels
• Fly to location
• Google Photorealistic 3D Tiles
• Visualizing metadata

We still have to update (or decide to update) the following:

• [ ] Controllers
• [ ] Flight tracker
• [ ] Post processing
• [ ] Using accurate sun
• [ ] Placing foliage
• [ ] Procedural foliage
• [ ] Quixel assets
• [ ] Cartographic polygons
• [ ] Tileset materials
• [ ] Metadata technical reference

This list excludes the VR tutorials, since I'm not sure we have explored using VR in UE5 yet.