Update generator-ng-component for 4.0.0

[Awk34]

We need to be able to generate components compatible with the new setup.

[ronrbc]

can you please briefly explain what is generator-ng-component doing?
i have checked the github page, and there is no description or use case. thanks!

[Awk34]

@ronrbc This generator is made up of the main generator, and the endpoint sub-generator. generator-ng-component is responsible for all the Angular front-end sub-generators (routes, components, services, etc). Yeoman's composability is used to include generator-ng-component's sub-generators in this generator.

[ronrbc]

Ok, thanks!