Pedestal:  Add window_{creat,remov}ed() functions
Pedestal:  Track open windows
Pedestal:  Add empty Window menu resource
Pedestal:  Add Window menu to menubar
Pedestal:  Store the Window menu ref for later
Merge branch 'track-windows' into Window-menu
Pedestal:  Populate the Window menu
Pedestal:  Select the window when chosen from menu
Merge branch 'Window-menu'