[FEATURE] Support for TypeScript AST nodes

[xeho91]

I'm creating a package - svelte-ast-print, which under the hood uses this awesome package. Thank you for it! 🙏

I'm attempting to achieve a momentum where I can support TypeScript syntax as well, so the ecosystem (especially for Svelte) can write codemods.
I personally have this need while contributing to @storybook/addon-svelte-csf - on an experimental support for Svelte v5. We want to improve developer's experience of migration from legacy syntax to modern. Currently, my printer (svelte-ast-print) will strip out all of the TypeScript syntax.

I know that Svelte parse does output AST nodes related to TypeScript syntax using typescript-acorn.

Possible blockers

1. typescript-acorn doesn't provide public types (interfaces) for AST nodes, nor there's any known to me a public/official ESTree TypeScript AST specification.

   If there's an agreement to help support TypeScript AST nodes with this package - esrap. Then I can help contributing to this package with exposing types of AST nodes related to TypeScript which typescript-acorn spills out.

[dummdidumm]

If we agree that it's too "dangerous" to add first class support for typescript-acorn nodes, I'm wondering if instead there's a way to create somewhat of a plugin API, where devs can contribute AST node->string participants that esrap then uses in a certain manner.