[TIMOB-23691] iOS: Expose status-bar background-color

   
   // Set the global status-bar background-color
   Ti.UI.iOS.setStatusBarBackgroundColor("red");
   
   var win = Ti.UI.createWindow({
       backgroundColor : "#fff"
   }); 
   var nav = Ti.UI.iOS.createNavigationWindow({window:win});
   var btn = Ti.UI.createButton({
       title : "Open another window"
   });
   
   btn.addEventListener("click", function() {	
       // Open a new window to see that the status-bar background persists across windows
       nav.openWindow(Ti.UI.createWindow({backgroundColor: "#fff"}));
   });
   
   win.add(btn);
   nav.open();