Added Button and Image files
Blinn shader texturing
Texture local loading
Localized rendering
2D shaders
2D coordinates
documentation update
Changed coord system
Image class skelet
code falling down to Image
class abstractisation
Correct texturing, images
shared_ptr in functions
vectors, removed elementCount
button header
Button code in place
Button graphics done
removed erroring state
Added Button callback, documentation
Merge pull request #37 from GenaBitu/button

button to develop