title: Customize Xamarin.Forms.Datepicker to pick and visualize multiple Dates
body: <p>i'm kinda new to the whole wpf/xamarin UI thing and want to start my first mobile app.
  So, like the title contains already the topic of this question, i would like to use the standard Xamarin.Forms Datepicker to let the user pick multiple Dates.</p>
  
  <p>I guess it will be pretty easy to submit on the Event for picking a date and put this into an array for the selected Dates.</p>
  
  <p>But how can i visualize all the selected Dates in the Datepicker Dialog? Is there any possability to do this with this Control?</p>
  
  <p>Thanks :)</p>