preserve jpeg exif data; closes #7657

[dfl]

Description

these changes preserve exif metadata on jpegs uploaded to an Image component.

Closes: #7657

[gradio-pr-bot]

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Install Gradio from this PR

pip install https://gradio-builds.s3.amazonaws.com/6f6c94263a859f99ab74184dea72bbd86b36e4c5/gradio-4.21.0-py3-none-any.whl

Install Gradio Python Client from this PR

pip install "gradio-client @ git+https://github.com/gradio-app/gradio@6f6c94263a859f99ab74184dea72bbd86b36e4c5#subdirectory=client/python"

[freddyaboulton]

Looks good to me @dfl ! Can you please add a unit test to test_processing_utils.py?

[gradio-pr-bot]

🦄 change detected

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preserve jpeg exif data; closes #7657

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[freddyaboulton]

This is handled in #7680 - thanks @dfl!