准备理一下菜单和工具栏相关的组件

TMainMenu                                           <- TMenu <- TComponentTPopupMenu                                          <- TMenu <- TComponentTPopupActionBar                       <- TPopupMenu <- TMenu <- TComponentTActionList                             <- TCustomActionList <- TComponentTActionManager  <- TCustomActionManager <- TCustomActionList <- TComponentTControlBar <- TCustomControlBar <- TCustomControl <- TWinControlTStatusBar                     <- T�Ƽ�,����CustomStatusBar <- TWinControlTCoolBar                            <- TToolWindow <- TWinControlTToolBar                            <- TToolWindow <- TWinControlTActionToolBar                                 <- TCustomActionToolBar <- TCustomActionDockBar <- TCustomActionBar <- TToolWindow <- TWinControlTActionMainMenuBar <- TCustomActionMainMenuBar <- TCustomActionMenuBar <- TCustomActionDockBar <- TCustomActionBar <- TToolWindow <- TWinControl

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