Add @next/bundle-analyzer (and other utils) to analyse bundles quickly

[natterstefan]

Feature Request

Add @next/bundle-analyzer to quickly analyze the bundle size of your app and 3rd party components.

Basic example

• see Papyrus Blog | How we reduced Next.js page size by 3.5x and achieved a 98 Lighthouse score

Motivation

Make it easy for developers to analyze their performance scores.