Switch from one repo to either monorepo or multiple repos

We have accumulated a lot of dependencies.  In cases where you may just want to use a few innocuous recipes, you are still pulling in the entire dependency tree.

Consider moving to either a monorepo ([reasoning](https://github.com/babel/babel/blob/master/doc/design/monorepo.md)) deploying many packages or multiple projects (seems painful)

Babel uses https://github.com/lerna/lerna
