graphics/qimgv: new port: fast and easy to use image viewer

Key features:
 * Simple UI
 * Fast
 * Easy to use
 * Fully configurable, including themes, shortcuts
 * High quality scaling
 * Basic image editing: Crop, Rotate and Resize
 * Ability to quickly copy / move images to different folders
 * Experimental video playback via libmpv
 * Folder view mode
 * Ability to run shell scripts
https://github.com/easymodo/qimgv

PR:	280422