title: VSPackage control added/removed to Visual Studio designer
body: <p>When the control is added or removed in the design time of VS, I guess there should be an event generated which can be used to control the behavior VS after the event.</p>
  
  <p>I was searching for an Interface in VSSDK which tells you when a control is added/removed on the Visual Studio design surface or (asp.net control in design/source page). Is there such an event?</p>
  
  <p>Thanks!</p>