ITL Multi Image Loader

Drop up to 8 images onto the node; each gets its own image_N output socket (sockets appear/disappear with the list, or pin output_slots to a fixed count so wires survive file edits). Each row has an on/off toggle: a switched-off row keeps its socket position but outputs None for image_N (and mask_N/filename_N on Advanced) — equivalent to leaving an unplugged OPTIONAL input, so don't switch off a row feeding a REQUIRED input. Optional downscaling: set downscale_mode to keep aspect ratio/crop to square/stretch to square and images larger than max_size shrink on load. count = number of files actually emitted (enabled rows), not the row count.