KappaPT Preview P7

Oi folks,

as this is a rather big-ish under the hood update that ironed a bunch of things out that bugged me a lot, I decided to treat this as the first "milestone update", which is thus also available for the Tier 2 Patrons :)

Most changes where of internal nature, but also have one or two visual improvements alongside them:

- refactored pipeline
-> less weird overhead and such
-> slightly better performance
-> slightly improved lighting quality here and there
- revamped sky projection
-> much more crisp horizon details
-> no more weird seams, distortions or pixelation
-> also a decent bit quicker
- refactored voxelization
-> maybe a bit faster
-> option to use instancing, which may or may not boost performance in some cases, can be found in internal settings
- some other general tweaks to filtering, colors and sky

Lens Flares might be broken right now.

As always, enjoy this update :)