Fix indirect + ao bake

Merge remote-tracking branch 'origin/master'

Fix for metallic and specular utility for Blender 3

Fix for the fix

GUI, background fixes, further octane work, image tools

RGBD update

Fixes to AtlasGroups, postpacking and encoding

Merge pull request Naxela#37 from Naxela/0.3

0.3

Begin atlas post-packing, fix bugs

Hide unsupported/buggy functions for now