Lacking support for t2iadapter_style_sd14v1 model in T2IAdapter

**Is your feature request related to a problem? Please describe.**
I was following [instructions for T2IAdapter](https://huggingface.co/docs/diffusers/api/pipelines/stable_diffusion/adapter) and trying to load the t2iadapter_style_sd14v1 adapter (Huggingface Hub [link](https://huggingface.co/TencentARC/T2I-Adapter/blob/main/models/t2iadapter_style_sd14v1.pth)).
```
from diffusers import T2IAdapter
adapter = T2IAdapter.from_pretrained("TencentARC/t2iadapter_style_sd14v1").to("cuda")
```
However I got an error stating this adapter is not found
```
TencentARC/t2iadapter_style_sd14v1 is not a local folder and is not a valid model identifier listed on 'https://huggingface.co/models'
```
Later on I learned that this adapter is not in the supported adapter [list](https://huggingface.co/docs/diffusers/api/pipelines/stable_diffusion/adapter#t2iadapter-with-stable-diffusion-14).

**Describe the solution you'd like.**
I would like this adapter to be supported.