RadioButton + Widget + Extensions

[edgarfgp]

This PR adds support for RadioButton based on : https://docs.microsoft.com/en-us/xamarin/xamarin-forms/user-interface/radiobutton

Description :

We have now a way to use a Text and a Widget . This will help to complete the #82

module Content =

   type Value =
    | String of string
    | Widget of Widget

    let fromString value = String value

    let fromWidget<'msg, 'marker> (builder: WidgetBuilder<'msg, 'marker>) =
        Widget(builder.Compile())

Usage

From String

   RadioButton(false, Content.fromString "Cat", Stuff)

From widget

   RadioButton(true, Content.fromWidget (Image(Aspect.AspectFit, "Cross.png")), Stuff)

Not Implemented

• As this moment we do not have support for ControlTemplate and this Control accepts a control template to allow extra customisation this .