Image + Audio + Text input using Llama 3.2 [DO NOT MERGE]

[farzadab]

This PR is not in a state to be merged, but it shows how Llama 3.2 can be used to combine image, text, and audio inputs together and get the correct response.

Take a look at llama32_script.py to see how this is done:

• llama 3.2 11B vision instruct model is loaded
• weights from ultravox-v0_4 (trained on llama 3.1 8B) are loaded without modification
• input consists of image and audio

Note: before using the script, a few lines in the transformers library need to be manually commented out to allow for this approach:
https://github.com/huggingface/transformers/blob/main/src/transformers/models/mllama/modeling_mllama.py#L2152-L2155
These lines don't allow you to specify inputs_embeds when vision input is present. Hopefully we can upstream this change in the future.