File name saving options

[dm3rd]

As per the to-do comment, it would be nice to have a few more file name options.

Off the top of my head I can think a few that would be useful.

current:
time
date

new:
steps
Quantization

I would also inquire about subfolders by date like comfyui does but I feel that is pushing the boat out.

[daniandtheweb]

Once I have some time I'll try to add more naming options.

The subfolders separation could also be done, but I need to check it carefully not to break the gallery tab logic.