Fix missing renames in the GLTF module

[aaronfranke]

These were discovered by @qarmin here: #16863 (comment)

• translation -> position
• zfar -> depth_far (changed based on fire's suggestion, was far)
• znear -> depth_near (changed based on fire's suggestion, was near)
• type -> light_type

[fire]

zfar -> depth_far
znear -> depth_near 

I don't like losing the z meaning. Other suggestions welcome.

Also I believe these are the exact json names. https://github.com/KhronosGroup/glTF/tree/master/specification/2.0#cameras

[aaronfranke]

Should be working now, sorry it wasn't working when I first opened the PR, I did so a bit too quickly. I used this to test the cameras: https://github.com/KhronosGroup/glTF-Sample-Models/blob/master/2.0/Cameras/glTF/Cameras.gltf

[qarmin]

@fire what about Camera3D?
Shouldn't far be changed to depth_far and near to depth_near?

[akien-mga]

Thanks!