[Feature Request] Find&Delete duplicate images

[BraINstinct0]

Adding functionality to find (not cropped, resized, or edited but completely) duplicate images

Preferred options for the function:

• [ ] Compare with/without including EXIF data
• [ ] Delete duplicate data(further options: leave latest/earliest/with EXIF data/without EXIF data only)
• [ ] Find duplicate images for selected image(s) Efficient search seems to be possible by hashing and comparing.