Nature's Aura Render Fix

This is a small mod made to fix a Nature's Aura bug where certain textures' backface culling breaks when Nature's Aura particles and Oculus are present. This means that things like water, flowers, crops, essentially any texture that goes invisible or changes when you're on a certain side of it render twice, leading to performance issues and graphical artifacts.

FAQ:

Q: Why don't you just submit a PR?

A: Per Ellpeck, the dev of Nature's Aura:

Q: Will this break my game?

A: No. It adds literally two lines of code to two anonymous particle classes in Nature's Aura.

Q: Will this break with shaders?
A: No.