Refactor Layout to use declarative NSLayoutAnchor

[alickbass]

With the NSLayoutAnchor, we can now use it to avoid the layout format language. Imagine, in your function that defines layout, we could pass the view and return an array of objects. Like this:

let title = "title".build(UILabel.self).style([.numberOfLines(0), .text("test")])
let subtitle = "subtitle".build(UILabel.self).style([.numberOfLines(0), .text("subtitle")])

let brick = "details".build().bricks(title) { container, title in
    return [
        title.centerXAnchor.constraint(equalTo: container.centerXAnchor),
        title.centerYAnchor.constraint(equalTo: container.centerYAnchor),
    ]
}

However, this approach will require some refactoring. I can volunteer, if you want :)