StoryboardInstantiable.swift

protocol StoryboardInstantiable {
    static var storyboardName: String { get }
    static var storyboardIdentifier: String { get }
}

extension StoryboardInstantiable {
    static func instantiateFromStoryboard() -> Self {
        let storyboard = UIStoryboard(name: storyboardName, bundle: nil)
        guard let vc = storyboard.instantiateViewControllerWithIdentifier(storyboardIdentifier) as? Self else {
            fatalError("Instantiated view controller does not match type")
        }
        return vc
    }
}