added mage comparison files
testing, how an image rectangle is working
added color helper class
first Implementation of an image comparison function
prepared write function
implemented first test
bugfix
bugfix
changed the design: there are now two tresholds
split image comparison to a pixelwise check the a squar error check
removed the now unnecessary output
added a  timer
added note
added thread work distributer
added multithreading support
removed comment
prepared supporting multiple formats
converting image to/from grayscale is possible now
gray image comparison
Merge branch 'feature-1-image-comparison' into develop