Child State Machines

[ds5678]

Describe the new feature or enhancement

Currently, complex animator controllers get exported like this:

Ideally, they should be more like this:

Each of the hexagons represents a child state machine. Here are some more images of how the output is supposed to look. All these images are for the same AnimatorController asset.

The release AnimatorController asset structure is complex and sparsely documented, but I investigated some of it a few months ago. From what I could ascertain, the child state machine nodes can determined only with string parsing. I will edit this with any information I uncover in future investigations until a solution is implemented.