SwiftUI+Actions.swift

func turn    (_ light:Light, _ onOrOff:Turn                                       ) { rootHandler( .lighting(.turn(light,onOrOff))             ) }
func apply   ( values:Light.Values,                                 on light:Light) { rootHandler( .lighting(.apply(.values(values),on:light)) ) }
func increase( value :Light.Value,  by inc  :Light.Value.Increment, on light:Light) { rootHandler( .lighting(.increase(value,by:inc,on:light)) ) }
func decrease( value :Light.Value,  by dec  :Light.Value.Increment, on light:Light) { rootHandler( .lighting(.decrease(value,by:dec,on:light)) ) }