Smartmenu implementation using offsetY to displace popup such that the previous selected item will fall onto cursor, includes checked item and highlighted.
For `Popup Menu` in theapartment, without this patch the second popmenu was not remembering the last selected item and was opening it from scratch, after this patch popupmenu will open from the last selected item already selected with checkbox.
Additional logic for drawing blinks when closing popup menu is added, closeMenu is overriden because it is called inside eventLoop and therefore need to be captured when closingMenu.
Add blinking animation support for macpopups, affects `Popup Menu` in theapartment, before this there was no animation when selecting item and the menu just used to immediately close, now however there is proper animation for item selection.
Added functions for menu drawing/selections, this uses the base functions of macmenu to implement mac-styled popupmenu's, also return selected item index/text.
Used by 'Popup Menu' in theapartment: With this changes the popupmenu is working with both item selectors, doesn't implement the icon selector.
