feat(typeahead): typeaheadOptionField as method of object

[Dinistro]

Currently it's not possible to set a field which is a method in the typeaheadOptionField to show the result of this method as option.

For example we have a list of objects of that class:

class Sample {
    id : number;
    localize() {
        return 'something translated';
    }
}

Now i would like to show the value that is returned by the localize function, but use the id as model. For this, we would need something like a typeaheadModelField as Input.