This is a blender add-on that contains tools to ease the creation/import process of assets into Godot Game Engine
https://github.com/godotengine/godot
Blender Add-On https://www.youtube.com/watch?v=fzKitRyqAK0&t=79s
Make sure you have removed any previous GGT version installed and re-open Blender before installing a newer release.