[WIP] Feature/scaffold ngapp using yo

Rebuild the Angular SPA using `yo angular`.

**TODO**

 -[ ] integration of `ngapp` into the server (webapp)
 -[ ] `grunt serve` should start the full-stack app, not grunt-connect
 -[ ] add css to `ngapp` - copy, move or share
 -[ ] remove the html5 folder

/to @ritch please review. You can look at the work I made so far or wait until the PR is done (hopefully tomorrow).