Operation request: Image manipulation operations from Jimp

[n1474335]

Summary

Now that we have introduced the Jimp library in #448, we should make better use of its capabilities.

Operations could be added to do some of the following:

• contain - Contain an image within a height and width.
• cover - Scale the image so the given width and height keeping the aspect ratio.
• dither - Apply a dither effect to an image.
• flip - Flip an image along it's x or y axis.
• gaussian - Hardcore blur.
• invert - Invert an images colors
• print - Print text onto an image
• resize - Resize an image.
• rotate - Rotate and image.
• scale - Uniformly scales the image by a factor.

[klaxon1]

i should have something soon for this.

[n1474335]

Closed in #506. Thanks to @j433866!