Load Sky Textures

[ataulien]

The SkyColoring-Module also has information about the textures to be displayed in the sky, which it should pass to the related sky rendering components. It was ported from the old REGoth repository and thus contains some blocks of code commented out regarding textures:

https://github.com/REGoth-project/REGoth-bs/blob/master/src/components/SkyColoring.cpp

To load the textures, see the OriginalGameResources-module.

[ataulien]

Turns out some of the sky textures are uncompressed DDS files, which is not supported by the importer yet...

[ataulien]

@charlydelta Loading the sky textures has been implemented inside REGoth-project/BsZenLib@beb53c3.