Gpt4o and multifile

[adithya-aiplanet]

Added support for GPT4o model

• llm.predict(query="", media_paths=[" "]) can pass list or path of image to pass along with predict

Added support for multi file uploads:

• Can pass path/ list of paths/ directory path

Uncommented compare retrievers, embeddings

• LLM warning shouldn't pop up now, only for Hybrid(for keyword retriever)