Add babel-plugin-lodash if in dependencies

https://twitter.com/kentcdodds/status/976808822307094528

Should be easy to do. Detect if lodash is used as a direct dependency and then add a new plugin? Not sure about the version or if we need to use the "latest version" package on npm to do that.

No files, tests, or entry points are named in the issue. Inspect how babel-upgrade detects direct dependencies and adds Babel plugins, then determine how the plugin version should be selected; done means lodash users receive babel-plugin-lodash without affecting projects that do not directly depend on lodash.

Written by the indexing model from the issue text.