simple overloading functions

IndicatorInfo.swift

public struct IndicatorInfo {
    
    public var title: String
    public var image: UIImage?
    public var highlightedImage: UIImage?
    
    public init(title: String) {
        self.title = title
    }
    
    public init(title: String, image: UIImage?) {
        self.init(title: title)
        self.image = image
    }
    
    public init(title: String, image: UIImage?, highlightedImage: UIImage?) {
        self.init(title: title, image: image)
        self.highlightedImage = highlightedImage
    }
}