Make the designated initializers with a viewClass argument public

[hooliooo]

Hi there,

Is there any reason why the initializers, containing the viewClass argument, are marked internal? It would be extremely useful if they were exposed as public.

Reason:
Let's say for example you want to define a SizeLayout and you want to determine what UITextField.Type you want to use at runtime, the current public initializers for SizeLayout prevents you from doing so.

func createSizeLayout<T: UITextField>(type: T.Type) -> SizeLayout<T> {
    .... logic for creation here ...
}

let textFieldLayout = createSizeLayout(type: YourCustomTextField.self) // this inferred as SizeLayout<UITextField> 

// if you follow the initialization steps, the used initializer in BaseLayout is:
public init(alignment: Alignment, flexibility: Flexibility, viewReuseId: String? = nil, config: ((V) -> Void)?) {
    self.alignment = alignment
    self.flexibility = flexibility
    self.viewReuseId = viewReuseId
    self.viewClass = V.self
    self.config = config
}

// instead of:
init(alignment: Alignment, flexibility: Flexibility, viewReuseId: String? = nil, viewClass: V.Type, config: ((V) -> Void)?) {
    self.alignment = alignment
    self.flexibility = flexibility
    self.viewReuseId = viewReuseId
    self.viewClass = viewClass
    self.config = config
}

Using the latter will still yield an inferred type of SizeLayout<UITextField> BUT if you set breakpoints in the config closure it will be a YourCustomTextField instance.