Smart folder for Atlases (DEFEDIT-551)

Description:
As a User I want to take as few steps as possible when implementing my content. I want to select a folder as a 'smart folder' in the atlas. The atlas would then dynamically import everything in that folder.

The actual entry in the atlas should be the path, this to remove any chance of merge conflicts.
smart_folders {
smart_folder: "/assets/textures/level/*"
}

Use case:
Export all images into a folder,
Create an atlas and add that folder as a smart folder.
Use image in my scene

or

Export image into smart folder
Use image in my scene

Business need:
It is important to reduce friction for everyone involved in the dev process. Less steps needed to implement anything is time saved.
2016-11-10 14:45:51 (Ragnar.Dahlen)
GIssar att denna egentligen var tänkt för dig?