Open image from clipboard

[ckbruns]

Want to:

• [x] copy image on monitor to clipboard using PrtSc key on keyboard
• [x] paste from clipboard to new file in image
• [x] crop image to desired item
• [x] save image
• [ ] possibly print image?

[cmbruns]

Fixed in b76005abd0b236fb0fa541ab8b005c5b964e9dbb