Good 4D Model Format (G4MF) - `.g4tf` and `.g4b` files

Node4D and other 4-dimensional types for making 4D games in Godot.

NodeND and other N-dimensional types for making 5D, 6D, 7D, etc games in Godot.

Node1D and other 1-dimensional node types for making 1D games in Godot.

Node25D and other 2.5-dimensional types for making 2.5D games in Godot.

NodeH3D and other hyperbolic 3-dimensional types for making hyperbolic 3D games in Godot.