Add support for FastViT

[xenova]

Example usage:

import { pipeline } from '@xenova/transformers';

// Create an image classification pipeline
const classifier = await pipeline('image-classification', 'Xenova/fastvit_t12.apple_in1k', {
  quantized: false
});

// Classify an image
const url = 'https://huggingface.co/datasets/Xenova/transformers.js-docs/resolve/main/tiger.jpg';
const output = await classifier(url, { topk: 5 });
console.log(output);
// [
//   { label: 'tiger, Panthera tigris', score: 0.6649345755577087 },
//   { label: 'tiger cat', score: 0.12454754114151001 },
//   { label: 'lynx, catamount', score: 0.0010689536575227976 },
//   { label: 'dhole, Cuon alpinus', score: 0.0010422508930787444 },
//   { label: 'silky terrier, Sydney silky', score: 0.0009548701345920563 }
// ]

List of supported models: https://huggingface.co/models?pipeline_tag=image-classification&library=transformers.js&other=fastvit&sort=trending

[HuggingFaceDocBuilderDev]

The docs for this PR live here. All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update.