Feature Request: Enable several init images to be loaded from a list

[Loadus]

Here's a weird request: Just like with prompt list, it would be cool to have the option to load init image from a text list of files. This would enable doing animations.

Also, with animated init image, would be cool to be able to (screen) blend the previously rendered frame over the next init image with a given blend value (0.0-1.0).

I did some animation experiments with prs and results were pretty amazing.