Add filetype selection to save image

[evan-holland-873]

#6518
This adds a filetype selection to the Save Image node so you can choose which format output images will be saved as for convenience. I have tested each format and they all work properly. I'm not sure if metadata works, or if there are any concerns with the implementation file = f"{filename_with_batch_num}_{counter:05}_.{file_type}".

[ltdrdata]

When adding this feature, it should not only expand the types of files that can be saved but also implement the functionality to save workflows as metadata/exif, allowing them to be loaded on the front end.

FYI,

ComfyUI/comfy_extras/nodes_images.py

Line 116 in d303cb5

metadata[inital_exif] = "{}:{}".format(x, json.dumps(extra_pnginfo[x]))

[evan-holland-873]

@ltdrdata I'm sorry, I don't quite understand. Why should it save workflows, and what are you trying to show me with the SaveAnimatedWEBP line? I closed this because I messed up my fork but I'll open a new one if I'm able to do what you are asking.

[ltdrdata]

@ltdrdata I'm sorry, I don't quite understand. Why should it save workflows, and what are you trying to show me with the SaveAnimatedWEBP line? I closed this because I messed up my fork but I'll open a new one if I'm able to do what you are asking.

ComfyUI supports image/video/audio drag&drop via that.