`@swc/css` exports CSS parser API

[sosukesuzuki]

Describe the feature

@swc/css is a Node.js binding for SWC CSS features. It privides only APIs for minification.

If it provides a parser API, it would be good for Node.js tools that want to use the CSS parser.

Babel plugin or link to the feature description

N/A

Additional context

I'm personally considering the possibility of migrating the CSS parser used by Prettier from postcss to SWC.

[g-plane]

• Sending AST through N-API can be very slow, even slower than calling JS code.
• SWC CSS parser supports CSS only, while Prettier can be used in Sass/SCSS/Less. What about those CSS preprocessors?