Refraction module

[e2002e]

Hi, I was working on refraction. It's working as expected with a shader pass, but when having refractive objects behind one another, there cannot be refraction.
Now I'm changing the approach, the refractive meshes will be drawn with shaders attached to the models, and using 'draw by view distance' should do the trick.

I will we woking on that this week, if no succes, then i'll get the refractive mechanism from the old voxel gi module.
https://github.com/e2002e/armory/tree/ss_refraction

[e2002e]

Did not do so, Instead I made a pull request for voxelgi going along with ss refraction.