LCL: TControl.Click: do not call OnClick if Action.OnExecute=OnClick, call Action.Execute always on click, fixed TCustomCheckBox LM_CHANGED action trigger

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@41682 4005530d-fff6-0310-9dd1-cebe43e6787f
LCL: TMenuItem.Click: do not call OnClick if Action.OnExecute=OnClick, call Action.Execute always on click

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@41683 4005530d-fff6-0310-9dd1-cebe43e6787f