Reading glTF extras (e.g. from Blender custom properties) to X3D metadata, support ch

[DP News-Robot]

We now read glTF extras data to X3D nodes metadata. In practical terms, it means that you can set custom properties in Blender, and then read it back in CGE using MetadataString and similar properties on nodes. We read “extras” data from glTF primitives, materials, cameras and transformation nodes. If you use Blender, it means …