title: Putting Freetypefont into libgdx skin
body: <p>In my uiskin.json I have this</p>
  
  <p><code>com.badlogic.gdx.graphics.g2d.BitmapFont: { default-font: { file: text/default.fnt } }</code></p>
  
  <p>This is fine for when I have the default.fnt in my text folder in the assets folder...</p>
  
  <p>However I want to use a Freetypefont. </p>
  
  <p>How do I create a Freetypefont and load it into the uiskin file? </p>