IgxOverlayService: set inputs/outputs of attached components

[Timmeeeey]

Is your feature request related to a problem? Please describe.

It is possible to attach a component via IgxOverlayService but you cannot set @Input() fields of the component.
Same with @Output fields.

Describe the solution you'd like

It would be great if you could set the inputs/outputs of the component via an additional parameter in IgxOverlayService.attach().

[wnvko]

Calling attach will fire contentAppended event. In the event arguments you have access to created ComponentRef and to the component you are trying to show in the overlay. Getting the component you can set any inputs or subscribe to any outputs you need like this:

    public ngOnInit(): void {
        this.overlayService.contentAppended.subscribe((e: OverlayEventArgs) => {
            const component = e.componentRef.instance as MyComponent;
            component.someInput = someValue;
            component.someOutput.subscribe(e => someSubscribtion);
        });
    }

Here is a sample project showing how to set an input to the component.