BottomShetInit.swift

public init(childViewController: UIViewController) {
        self.childViewController = childViewController
        super.init(
            nibName: String(describing: BottomSheetViewController.self),
            bundle: Bundle(for: BottomSheetViewController.self)
        )
        modalPresentationStyle = .overFullScreen
        modalTransitionStyle = .crossDissolve
    }
    
    required init?(coder aDecoder: NSCoder) {
        fatalError("init(coder:) has not been implemented")
    }