Moved image functions to its own namespace
Moved the color wrapper to its own namespace
Removed image manipulation from the Image and Spritesheet records
Rewrote the color helper function, to fix an error when refered from another ns
Moved image transformations to new namespace

  - The exception handling have also been moved
make-transparent is now working on Image record instead if java BufferedImage
Removed transformations from the image loading

  - Also added hanling of ImageIO exceptions
Added a new function, enabling multiple transformations of a Image record

  - The transformations is defined i a map, given as options