Incorrect CenterOfMass for ColliderConstructorHierarchy with scale up transform

[MikMikus]

When i load gltf model with scale up transform and use ColliderConstructorHierarchy, automatically added CenterOfMass for whole entity is posited outside model.

See collider_constructors example and change .with_scale(Vec3::splat(2.0)) to eg. .with_scale(Vec3::splat(10.0)).

Update:
I'm not sure, but looks like this doesn't work as expected:

if !collider.is_added() {
    mass_properties -=
        collider_mass_properties.transformed_by(&previous_collider_transform);
}

[Jondolf]

This seems to have been fixed by #574.