Rely on huggingface_hub for common tools
# What does this PR do?

This PR removes the `hf_api` module from Transformers to rely on the one in `huggingface_hub`. It also fully deprecates the `transformers-cli` command lines relying on it (such as `login`, `whoami`, `logout`).

In passing, when `model_list` was used, this PR switches to the new version, `list_models`.

cc @julien-c 
Awesome, wanted to do this for quite some time, thanks!