Triage GPU asset uploads

[DoubleStyx]

Problem / use case
Currently the GPU uploads of assets are done in a rather arbitrary order, which means some meshes may end up loading last.

Desired outcome
Prioritize mesh uploads before texture uploads.

Links / attachments

[troyBORG]

Not sure if this was related to last night. But I was in a world and two different peoples meshes would not load. I could see there clothing, or their glasses, but their body mesh would not load. Even after leaving and rejoining the world, and even restarting the game.
I switched back into Unity, and it loaded perfectly. (I'm using the same Data/Cache folders between renders if that effects anything)

[DoubleStyx]

This is unrelated. I think there is some kind of regression where a certain avatar / skinned mesh will simply not load, but I don't have an example of what an offending avatar would be and thus have no way to bisect this at the moment.