Include schemas into webpack build

[roll]

Overview

For now in browsers it works only in remote mode (using calls to schemas registry). We could improve speed a lot including builtin schemas into webpack build. It's possible using System.js or dynamic require:

• https://webpack.github.io/docs/context.html
• https://github.com/kentcdodds/es6-todomvc/blob/da6fb78322c8849096d200bc357e53f840c5bf17/src/graph/index.js#L49-L53 (see also webpack config)
• https://github.com/systemjs/systemjs

Tasks

• [ ] find out how to achieve the goal
• [ ] implement
• [ ] tests