Images dir

[Metallicow]

re: micropython/micropython#652 (comment)

Create a images dir for images of the board, related textures, etc...

The mindmap I'm making for the board uses a couple of the images cleaned up from the pdf.
Also these textures could be used for 3D model renders, etc.
I also have a few .ico also for windows customization that would be placed in this dir(with a wiki tut I guess best housed here on how to do)

Please also upload some high res images(photos) of the actual released board also, not just the bland 3D topdown images.

[dpgeorge]

I added hi-res photos of the front and back of the production board, in images/.

If you want to add other images that are related to the board itself, please make a PR.