Kappa v3.0 Preview E7

This is the first version featuring the brand new SSRT features I recently came up with.

It includes:

- proper RTAO with a skybox sample
- SSRT based blocklight tint (aka. colored lights around emitters)
- SSGI
- fully functional resourcepack support in dimensions
- various internal improvements
- various bugfixes

The list of remaining features that need to be added is getting ever closer now. Next up should be lens effects (DoF, Lens Flares), labPBR emission and AO as well as POM.