Support image input in the chat completion request

[Youho99]

Tested with a single image

This pull request responds to issue #54

It allows you to take into account the architecture of the OpenAI API request with an image

Example on the OpenAI documentation:

curl https://api.openai.com/v1/chat/completions \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer $OPENAI_API_KEY" \
  -d '{
    "model": "gpt-4-turbo",
    "messages": [
      {
        "role": "user",
        "content": [
          {
            "type": "text",
            "text": "What'\''s in this image?"
          },
          {
            "type": "image_url",
            "image_url": {
              "url": "https://upload.wikimedia.org/wikipedia/commons/thumb/d/dd/Gfp-wisconsin-madison-the-nature-boardwalk.jpg/2560px-Gfp-wisconsin-madison-the-nature-boardwalk.jpg"
            }
          }
        ]
      }
    ],
    "max_tokens": 300
  }'

The code has not been prettyfied, so we need to review that

[lhenault]

Thanks for your work, will happily review this once you think it's ready (and passing the pre-commit check). If you have a working example for VLM / image processing to share, that would be a nice addition to the existing ones.

[Youho99]

Don't use grpcio and grpcio-tools 1.65.0 version (remised version)

I don't know how to modify it in the poetry requirements

[Youho99]

I just modified the rules regarding the versions of grpcio and grpcio-tools in the toml, and I regenerated the poetry.lock

Since this is my first time doing this, I would like to request special attention on this.

[Youho99]

I will provide an example of using my feature in a second step (in another PR I think)

[Youho99]

@lhenault I think you can review this PR (and change the version accordingly) :)

[lhenault]

Hey @Youho99 !

I tried your changes the other day and encountered a few issues, but probably because of me. Thanks again for your PR and sorry for the delay, it's very much appreciated. 😌

Let me have another look soon (and if you have a working example for image inputs that might speed up things).

[Youho99]

@lhenault

In the next few days I'll get back to it, and provide an example.

Let me know if you have any problems.