3.0 Cake Bake New Look #2 - App Skeleton Files

App Skeleton files for https://github.com/cakephp/cakephp/pull/4752
The reason is that the font is loaded optionally and deferred. E.g. the page load will not hang if you are developing locally and don't have any internet connection. What is FAUC?

To me the cake bake look is much improved by these 2-3 fonts and it helps with perceiving CakePHP 3.0 as a fresh modern framework which should help adoption. It also helps as a default to have a rather good looking RAD environment.

I am open to include these fonts in the app skeleton but it would add additional dependencies (though cakephp3 already has quite some of them and manages them well through composer).