slice
fun <T : SizeableInt> SliceCoordsWithBase<T>.slice(bounds: RectangleInt = RectangleInt(0, 0, width, height), name: String? = null, orientation: ImageOrientation = ImageOrientation.ROTATE_0, padding: MarginInt = MarginInt.ZERO): RectSlice<T>
fun <T : Bitmap> T.slice(bounds: RectangleInt = RectangleInt(0, 0, width, height), name: String? = null, orientation: ImageOrientation = ImageOrientation.ROTATE_0, padding: MarginInt = MarginInt.ZERO): RectSlice<T>