Support info with gr.Image

[hysts]

• I have searched to see if a similar issue already exists.

Is your feature request related to a problem? Please describe.

I think the info feature is awesome, but currently gr.Image doesn't seem to support it. It would be nice if we could add info to the image component as well.

Additional context
When I made this Space, I was initially thinking of adding instruction with info, but I realized that it wasn't supported, so I used gr.Markdown instead. Using gr.Markdown is OK, but info feature would be useful for image component as well, especially when using sketchpad with input image, because it would probably require instruction on what to draw with the sketchpad function.

Also, other than sketchpad, sometimes there might be some assumption on input images, like it has to be a human face, etc., so info field would be useful for such cases too.