Summary:
Support symlinks under `node_modules` for all local-cli commands. PR https://github.com/facebook/react-native/pull/9009 only adds symlink support to the packager.
But other cli commands like `react-native bundle` creates its own instance of packager that doesn't have symlinks as part of its project roots, which results in the bundler breaking since it cannot find modules that you have symlinked.
This change ensures all `local-cli` commands add symlinks to its project roots.
Test plan (required)
1. Create a symlink in node_modules (for instance use npm/yarn link)
2. Run `react-native bundle`.
Closes https://github.com/facebook/react-native/pull/11810
Differential Revision: D4487741
fbshipit-source-id: 87fe44194134d086dca4eaca99ee5742d6eadb69
Harshil Shah