Angular Renderer: Idiomatic Framework Use

[manfredsteyer]

This is about using patterns, meanwhile known from Angular's HttpClient, the router and hence also from other 3rd party libs:

• A provideCustomCatalog function or a provideA2Ui function would be great to replace this:

  {
  provide: A2UI_RENDERER_CONFIG,
  useValue: {
  catalogs: [customCatalog],
  },
  },

• It would be great if A2uiRendererService were auto-provided. Currently, we have to add it by hand to the providers-Array.