Implement "paint" action for image generation in solve_github_issue.

[github-actions]

^{This message was generated by git-bob (version: 0.11.2dev, model: gpt-4o-2024-08-06, log), an experimental AI-based assistant. It can make mistakes and has limitations. Check its messages carefully.}

This pull request implements a new "paint" action in the solve_github_issue function within _ai_github_utilities.py, which allows for image generation via a prompt. The paint_image function was introduced to generate and save images using PIL directly. Additionally, _utilities.py was modified to include the images_from_url_responses function, which processes OpenAI's URL responses into PIL images instead of numpy arrays. These changes facilitate the integration of visual content into the project, enabling users to create images from textual prompts seamlessly.

• src/git_bob/_ai_github_utilities.py Added "paint" action in solve_github_issue and implemented paint_image function using PIL.

• src/git_bob/_utilities.py Added images_from_url_responses function to convert OpenAI's URL responses to PIL images.

closes #418

[haesleinhuepf]

Instead of from ._create import create please take over code from the function create from here: https://github.com/haesleinhuepf/darth-d/blob/main/darth_d/_create.py and integrats its code into the paint_image function.

git-bob implement this

[github-actions]

^{This message was generated by git-bob (version: 0.11.2dev, model: gpt-4o-2024-08-06, log), an experimental AI-based assistant. It can make mistakes and has limitations. Check its messages carefully.}

This update introduces a "paint" action for the solve_github_issue function within _ai_github_utilities.py, allowing for image generation via a prompt using the PIL library. It also integrates a new function in _utilities.py called images_from_url_responses, designed to process OpenAI's URL responses into PIL images, enhancing the project's capability to incorporate visual content.

• src/git_bob/_ai_github_utilities.py Added "paint" action with the paint_image function using PIL for image generation.

• src/git_bob/_utilities.py Incorporated images_from_url_responses to convert OpenAI's URL outputs to PIL images.