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