Redo downsample shader to work properly without flickering, right now with just gaussian since we don't use any others right now
Don't dispose of temp rendertarget when trying to resolve it again, GetTemporary gets from dict, fixes multiple ui blur fetches, this solution was causing issues before but seems fine now we're hashing every parameter
Do 1px feathering on CopyFrameBufferCached to avoid sampling without real intersection
Remove hacks from GenerateMips, rewrite downsample_cs to support other mip generation methods
Update compiled skin shader with glow-in-dark fixes