Improved GLTF Node Dictionary and refactored UUIDs

[HexaField]

Summary

Subtasks Checklist

Breaking Changes

References

closes #insert number here

QA Steps

[HexaField]

In the studio, entering the "assets" folder in the file browser crashes the studio

Is this bug pre-existing?

EDIT: hmm looks like it is in this branch unfortunately

[dinomut1]

In the studio, entering the "assets" folder in the file browser crashes the studio

Is this bug pre-existing?

EDIT: hmm looks like it is in this branch unfortunately

i think it's to do with the asset preview

[HexaField]

@dinomut1 @AidanCaruso @DanielBelmes The core refactor of this should be fairly solid - default scenes, studio authoring & multiplayer seems to work fine.

There are some things I don't know how to test around dererferncing & material library, so please test these if you have time.

The main part left is changing how entities are referenced and resolved in the components that store references to other entities. So far the components identified that do this are Triggers, Render Settings, Interactables, Envmap, Spline, Media, Basic tutorial, Pong tutorial, LLM, XRUI tools