Split functionally away from runtime

[maraisr]

Hello 👋🏻

Firstly, thank you for this library! Was just wondering, we wanting to this in the context of workers, and thus cannot have anything nodey in the bundles.

Would it at all be possible to split the main entrypoint into being "just webpack" and a webpack-imporeted/utils for all the low level functionality?

Particularly curious about putting the below into seperate entrypoint.

webpack-imported/src/index.ts

Line 2 in f88fb38

export { importAssets } from './imported';