feat(PORTAL): allow user to provide bindings for a ComponentPortal

[spike-rabbit]

Feature Description

This is basically reopening #717, but with the new binding feature of Angular I believe this would now be a very useful extension.

I would like to have the possibility to do this:

const toolTipPortal = new ComponentPortal(TooltipComponent, { 
  bindings: [inputBinding('value', value)],
  ...
});

I would love to provide a PR if you confirm that this feature has a chance of being accepted.

Use Case

In my case, I am building a tooltip directive.
The directive has an input() and this input is forwarded into a component which is shown in an overlay.
Currently I am using an InjectionToken.

Being able to use bindings would simplify the code.