A segment-like control that has optional value selected by default and also can be setted to nil, but gets it´s value on first touch.
The options property is defined as:
var options: [(String, Any)]
So it can store practically anything:
[
("Zero", 0.0),
("Pi", Double.pi),
("Kilo", 1024.0)
]
but is setted by default with:
[
("Yes", true),
("No", false)
]
