Virtual Tetxuring is now in dev-rendering

[wickerman123]

@jonimake

Nope, it seems to work more or less, you can render out decals to the virtual texture during runtime and such. Behold: spline decals https://i.gyazo.com/23071c3d22f9ce6b65b2ae2ae867f861.mp4

Is this a new feature introduced with this commit or is this your own implementation of spline decals?