title: How to use Label instead of Double when adding a value in TChart Lazarus
body: <p>When using TChart component, let say adding one bar series, how to change the value of the x axis using label instead of Double?</p>
  <p>Currently I can only using addXY in bar series, with two numbers.
  Is it possible to add like (Apple, 1000), (Orange, 400), (Banana, 10)?
  Currently I am just using an index and add the fruit name as the label. I want to put the label not on the bar, but exactly in the x axis.</p>
  <p>How to do such thing using TChart in Lazarus?</p>