Change reproject opacity -> mask to displacement-> mask and add displacement slot

It would be extremely useful and beneficial if we had access to a displacement map slot for textures, and potentially also to an ambient occlusion slot.

I understand that in the upcoming update, these maps will already be stored internally for imported meshes.

However, having direct access to them within Nomad itself would be highly valuable and important.

In addition, even if the displacement map cannot yet be fully utilized, it would be very practical to modify the Reproject option so that the mask can be projected directly from the displacement map instead of the opacity map, as is currently the case. This would create a much more coherent and technically correct workflow, ensuring that everything functions as expected.

I can also see this becoming very useful and forward-looking for future development.