* Move build/packages/* to build/node_modules/*
This fixes Node resolution in that folder and lets us require() packages in it in Node shell for manual testing.
* Link fixtures to packages/node_modules
This updates the location and also uses link: instead of file: to avoid Yarn caching the folder contents.
* Added missing params object to execUnlessDry call
* Public package names are no longer hard-coded
* Added "v" prefix to git tag
* Show more accurate in-progress duration
* Properly bucket-bridage params
* Prettier
* Publish command logs stack with error
* Add a timeout before querying npm right after publish
* Conditionally log some post publish steps
* Print ready-to-paste 'yarn add' instructions for CRA prerelease testing