Add webpack to the demo shell

[magemello]

Major actions:

• remove module.id from all components
• remove @types/core-js from all components (due to conflicts), replaced with tsconfig.json extensions
• ensure i18n, images and external templates are loading
• upgrade demo shell to use webpack 1 (official released version)
• unit testing support for demo shell
• provide documentation updates for all components affected
• tslint configuration for webpack

Optional:

• move dependencies to demo projects (polyfills, MDL and other should be part of demo project and not of the component library)
• migrate unit tests for all components to webpack
• upgrade code coverage configuration for all components
• migrate project demos for all components to webpack
• provide sever configuration for demo shell bundle (when building in production mode)

[DenysVuika]

Changes related to webpack should be also ported to yeoman app generator.

[magemello]

The demo shell works with webpack and angular-cli. To do so I had to change all the templates and the css of the components and require it, also introduce a gulp task that copy all the images and the internationalization files in the demo shell. This bring 2 problems:

1. All the test are broken
2. All the components demo are broken

Now we have 2 choices :

1. Find the way to make the demo-shell working without to require all the template and the css in the components.
2. Fix the tests and the demos :)

[DenysVuika]

I am not sure about angular-cli support at this point. Couple of cli commands may work but we have no support for entire cli.