title: Vertical bar chart axis labels with libchart
body: <p>I create VerticalBarCharts by libchart and it look like this:
  <img src="https://i.stack.imgur.com/zlNM2.jpg" alt="enter image description here"></p>
  
  <p>But client want add labels on the left axis(red arrow). I searched for solution in lib api but didn't find it. Is there way to do this?
  Or if not, what library can give the same functional? (draw chart images on server side)</p>