feat: Handle HF Remote API Call Format

[ishaansehgal99]

Reason for Change:
Remote HuggingFace API uses a particular format:

curl 'https://api-inference.huggingface.co/models/HuggingFaceH4/zephyr-7b-beta/v1/chat/completions' \
-H 'Authorization: Bearer hf_xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx' \
-H 'Content-Type: application/json' \
--data '{
    "model": "HuggingFaceH4/zephyr-7b-beta",
    "messages": [
		{
			"role": "user",
			"content": "What is the capital of France?"
		}
	],
    "max_tokens": 500,
    "stream": false
}'

This needs to be adhered to in the code.

Reference: https://huggingface.co/HuggingFaceH4/zephyr-7b-beta?inference_api=true

Adding this code ensures we continue to support OAI, HF Remote and Custom URL as our LLM backend