Nieuwe code bijgewerkt

#include "Image.h"
#include "Algorithm.h"
#include "GrayAlgorithm.h"
#include "HistogramAlgorithm.h"
#include "EqualizeAlgorithm.h"
#include "SaltAndPepperAlgorithm.h"
#include "MeanAlgorithm.h"
#include "MedianAlgorithm.h"
#include "SingleColorAlgorithm.h"

Volgens mij alles van week 1 en 2 zit erin