move_to
Description:
Starts a new contour by placing the pen at x, y.
If this function is called twice in succession, the first call will result in a contour made up of a single point. The second call will start a new contour.
Parameters:
| this | 
           a path builder  | 
      
| x | 
           x coordinate  | 
      
| y | 
           y coordinate  |