Inserts a figure at the current position of the view cursor.
    
    rlo_figure(svg_file, caption, aspect = 1, width = 17, height = aspect *
  width)
    
     Arguments
    
      - svg_file
 
      - Path to an SVG file
 
      - caption
 
      - The caption to use for the figure
 
      - aspect
 
      - The aspect ratio (height/width) to use
 
      - width
 
      - The width in cm
 
      - height
 
      - The height in cm