Add PSD Layer Groups Support

[Donovan Keith]

From Guenther Lickert

To bring a multi-layered Photoshop file into Cinema 4D and split it out into individual materials. In my case I have a Photoshop file witch groups. The first step was the graphic ideas in Photoshop Groups. My aim is to get renderings from one Objekt with different designs. Sometimes I duplicate the same Objekt and sometimes one object get a stack of tags. And often I make versions witch the take System.

Nowadays I copy the Material and select the appropriate layerset... in the Shader Properties. Which is not really so much work because the first step with "CV-Import Image As" was already a big help.

Maybe you could imagine to do a Import like "Directory..." particular for Photoshop Layers (I believe TIFF layers work similar).