[ENHANCEMENT] Add the ability to download the model file from HF repo

[Jiltseb]

Enhancement Description

• Make sure deployment models can be downloaded from local repo, URL or HF repo.

Advantages

• It will act as a unified function to download the model independent of the type of input (path/URL/HF repo)

Possible Implementation

• Posting the model in HF repo
• Modifying the function to download the model
• Add hashing info in URL and check for sha256 in the hash type.

[ashwinnair14]

For now we only support HF_transformers and VLLM models.