Turn this into a package

[levino]

I want to be able to do npx @hardfork/create-react-app and get the content of this repo in place. Should not be too hard to do, I bet there is an app for this.

Background: If we do this and we also have @hardfork/create-graphql-lambda-mysql-backend and @hardfork/create-react-native-app and @hardfork/create-typescript-package and @hardfork/create-gatsby-page we can use any combination of these in monorepos. With "checking out from github" that is not so easily possible.

We probably want to turn this very repo into a monorepo for this too.