WiP: PR as also Discussion new loader API

[lemanschik]

Feature Use Case

will expose rollup as a import able worker via 2 new entrypoints designed for the new node 19.1 import require flags that are the backbone of costomResolvers and polyfills as getting executed before freezing intrinsics

• see: node/test/es-module/test-esm-import-flag.mjs in https://github.com/nodejs/node/pull/43772/files

Feature Proposal

Design 2 new entrypoints with a shared skeletton logic to load plugins as loader hooks via the new --import --require flags of nodejs 19.1 +

Closes:

• Rollup + Web Bundles #4729
• Proposal: split rollup into smaller packages for faster development and platform integrations #4706 solved via https://github.com/lemanschik/modules rollup/rollup.md
• Rollup should fail on extensionless imports in a type: module package #4301
• feat(esm): leverage loaders when resolving subsequent loaders nodejs/node#43772