sd_api_pictures Should include SD metadata in generated images

[altoiddealer]

I have the sd_api_pictures extension running and it seems like it is working as intended-
-The bot types something
-SD uses that as a prompt to generate an image
-The image appears in the chat, and also in the /sd_api_pictures/outputs directory.

However, the output .PNG images do not have any Stable Diffusion metadata., which is very unfortunate.

Originally posted by @altoiddealer in #309 (comment)

[altoiddealer]

This is how the generated images should include metadata (example from a typical SD output)

[xlyric]

I have modify the API, and it's work, the image has now metadata

ln14 : from PIL import Image, PngImagePlugin

ln 147 :
png_payload = { "image": "data:image/png;base64," + img_str } response2 = requests.post(url=f'{params["address"]}/sdapi/v1/png-info', json=png_payload) pnginfo = PngImagePlugin.PngInfo() pnginfo.add_text("parameters", response2.json().get("info"))

corrected API
api.py.txt