Feature request: batch processing

This tool is really great and much appreciated, thank you!

I realize this one is a bit pie-in-the-sky, so appreciate your consideration: I would love to be able to batch process images by loading a formatted text file of some kind (YAML, say). I would imagine the file would need:

* A folder designated for saving output
* A list of prompts

I would imagine the file would save with the prompt as file name, if possible, or even a line number from the input file. Batches would run with whatever Advanced options you had set before loading the file to avoid complicating the text file too much.