Description:
    Creates a *.sublime-menu file. Define Menubar and various right-click menus.
    File name is significant because it determine which element (Menubar/statusbar/...) is affected.

Example:
    yo sublime-package:menu

    This will create:
        menus/Context.sublime-menu                Right click on main buffer.
        menus/Encoding.sublime-menu               Left click on "Encoding" section in statusbar.
        menus/Find in Files.sublime-menu          Left click on "..." button on Where field of Find_in_files.
        menus/Indentation.sublime-menu            Left click on "Indentation" section in statusbar.
        menus/Line Endings.sublime-menu           Left click on "Line Ending" section in statusbar.
        menus/Main.sublime-menu                   Main Menu bar.
        menus/Side Bar.sublime-menu               Right click on items in Sidebar.
        menus/Syntax.sublime-menu                 Left click on current syntax section in statusbar e.g. 'Plain Text'.
        menus/Side Bar Mount Point.sublime-menu   Right click on main folders in Sidebar.
        menus/Tab Context.sublime-menu            Right click on Tab bar.
        menus/Widget Context.sublime-menu         Right click on text field of any widget (i.e: search panel or output panel).
