Max height and width properties for displaying images in template should consider same size (patch included)

The properties display.max.width and display.max.height that can be configured on /hippo:namespaces/hippogallery/image/editor:templates/default/display to check if an image needs to be displayed in the template of the imageset, are now used to check if the image size is SMALLER than the max width/height. Because of this the value of the properties needs to be 1px larger than the image.

For example:
Image size: 1280 x 735 px
display.max.width: 1281px
display.max.height: 736px

The fix: In the class org.hippoecm.frontend.plugins.gallery.editor.ImageDisplayPlugin
method: shouldDisplayImage(...)

return width <= maxWidth && height <= maxHeight;