Setup Lerna monorepo, splitting reporter to new package

[valscion]

This PR aims to get the build to pass. Part of version 3 upgrade, pointing to PR #97 and not master.

[valscion]

🎉 This works:

cd packages/webpack-bundle-analyzer-plugin
npm pack
mv webpack-bundle-analyzer-3.0.0-alpha.0.tgz /path/to/our/app/
cd /path/to/our/app
npm install ./webpack-bundle-analyzer-3.0.0-alpha.0.tgz

The package file used was this: https://github.com/th0r/webpack-bundle-analyzer/releases/download/v3.0.0-alpha.0/webpack-bundle-analyzer-3.0.0-alpha.0.tgz

[email protected] node_modules/webpack-bundle-analyzer
├── [email protected]
├── [email protected]
├── [email protected]
├── [email protected]
├── @webpack-bundle-analyzer/[email protected]
├── [email protected] ([email protected])
├── [email protected] ([email protected], [email protected])
├── [email protected] ([email protected], [email protected], [email protected], [email protected], [email protected])
├── [email protected] ([email protected])
├── [email protected] ([email protected], [email protected], [email protected], [email protected], [email protected], [email protected], [email protected], [email protected], [email protected], [email protected], [email protected], [email protected], [email protected], [email protected], [email protected], [email protected], [email protected], [email protected], [email protected], [email protected], [email protected], [email protected], [email protected], [email protected], [email protected], [email protected], [email protected], [email protected])
├── [email protected]
└── [email protected]

And when I generate a performance build, it works!

Likewise, in this repository, after running npm run build in the root, I can check out whatever samples I've got from other PRs:

./packages/webpack-bundle-analyzer-plugin/lib/bin/analyzer.js samples/tmp/stats.json