DEMO for module No resize small images

Image 1 : No resize mode, if the image is smaller than the size it should be displayed, we don't touch it and display the image directly.

Image 2 : No resize keep frame mode, if the image is smaller than the size it should be displayed, we let it to it size (no upscale), but we set a frame around it (it can be useful for some templates)

Image 3 : Default opencart behaviour with small images, the image is scalled up which result in loss of quality

Image 4 : A big image, just for reference, nothing to do here all is fine