Convert and draw the Bitmap NUU formats used by Adobe Director, commonly found in BITD chunks in DIR/DXR files. These files have no headers, so the width, height and bitdepth is required. When copying out of a DIR/DXR file, do not include the beginning of the container with the length of the NUU file. This converter is still experimental, and cannot be expected to work perfectly. It still fails with some smaller images.