Add Image to Imaris Scene

This extension will add an additional image to the current image open in Imaris. Instructions: open the first image in Imaris. Run the extension. Choose second image in pop up menu. It is not required that image1 and image2 be the same resolution, size, time points, or number of channels. However, it is preferable that they have the same XYZT resolutions as rounding errors can occur when scaling the images to match resolutions.