Example command:
   PureRef -c 'load;example.pur' -c 'exportScene;D:/example.png;1000;1000;false' -c 'exit'

Available commands:    [] = optional argument, () = default value
   - clearScene                     Clears the current scene.

   - exit                           Closes the application.
      [Exit code(0)]

   - exportImages                   Exports all images in the current scene to individual png files.
       Output directory             The directory must exist for the export to succeed.
      [Export cropping(true)]       If this is set to false the images will be exported unmodified.
      [Name override]               If this is provided all exported images will be named according to
                                     this string. %0 = Original name, %1 = Sequence number, %2 = Sequen
                                     ce number with leading zeroes, and %3 = Scene name. An empty templ
                                     ate will result in the original name.

   - exportScene                    Exports the current scene.
       Path                         Output file path.
      [Width(-1)]                   Width of the output image (1-20000). If set to -1 it will try to us
                                     e the width of the scene.
      [Height(-1)]                  Height of the output image (1-20000). If set to -1 it will try to u
                                     se the height of the scene.
      [Canvas background(true)]     Include canvas background.
      [Image borders(true)]         Include image borders.
      [Include children(true)]      Include child items.

   - load                           Loads given files. Additionally, If the files are images, you can p
                                     rovide x and y coordinates for where to place the loaded images.
       Paths                        Files to load.
      [X(0)]                        X-coordinate of the center of the loaded images
      [Y(0)]                        Y-coordinate of the center of the loaded images

   - save                           Saves the current scene.
       Path                         Output file path.