Duck collector: Add support for views

[patriksvensson]

Is your feature request related to a problem? Please describe.
When collecting builds from another Duck instance, it would be nice if I could specify which view to use.

Describe the solution you'd like

{
    "collectors": [
        {
            "duck": {
                "id": "duck_other",
                "serverUrl": "http://localhost:8081",
                "view": "the_view_id"
            }
        }
    ]
}