Google Summer of Code 2024 - Final Evaluation: Procedural Fragment Shader Generation Using Classic Machine Learning

This is the complement of #2399 and #2397.

TODO:

[ ] Integrate the shader editor: https://github.com/k0T0z/nodeeditor. Add more collaborators in the repo.
[ ] Add the ability to import an image and convert it to a texture (Sampler2D).
[ ] Add UI tests to enhance the editor's robustness and begin adding tests for RGM because if I don't start it, no one else will 😵‍💫.
[ ] Create an icon for the visual editor resource.
[ ] Update RadialGM.pro if needed.
[ ] Document all functions and classes.
[ ] Must deliver the code FORMATTED.
[ ] Put license in all files.