Add support for comparing gltfs by implementing PartialEq on Root

[rydb]

I am trying to use this library to serialize meshes for my project into the gltf format. In order to confirm I'm doing it correctly, I would like to compare a mesh gltf imported from a working exporter, and the mesh gltf exported from the one I'm working on.

However, currently, I cannot compare gltf files as Root does not implement PartialEq

This pr resolves this by implementing PartialEq on Root and all attributes that Root uses.

[rydb]

tried to test the check failures locally with act and I'm getting these two errors

[Tests/Run test]   ❗  ::error::Input required and not supplied: token
[Tests/Run test]   ❌  Failure - Main Checkout glTF Sample Assets

not sure how to fix this.

[rydb]

tried to test the check failures locally with act and I'm getting these two errors

[Tests/Run test]   ❗  ::error::Input required and not supplied: token
[Tests/Run test]   ❌  Failure - Main Checkout glTF Sample Assets

not sure how to fix this.

gave test suite auth token and this bug went away. Now waiting on:
serde-rs/json#1227

to be merged to finish this pr.