Need to update @Directive so it acts like the ng2 annotation

[timkindberg]

See: https://angular.io/docs/js/latest/api/annotations/DirectiveAnnotation-class.html

@directive is basically a @component without a view. So its a directive that alters the behavior of an element. So we should be able to use it just like @component, like this;

@Directive({
  selector: '[dependency]',
  properties: ['id']
})
class Dependency { }

I know right now @directive is an ng1 decorator for basically doing ng1 style directive declaration. But I think a1atscript should focus on being a pure ng2 polyfill (my two cents).