rewrote test fitness funciton

src/fitness_function/test_fitness_function.py

@@ -0,0 +1,12 @@
+class test_fitness_funciton:
+    def get_fitness(self, chromosome):
+        # For every gene in chromosome
+        for i in range(len(chromosome.genes)):
+            # If the gene has a five then add one to the fitness
+            # Example -> Chromosome = [5],[2],[2],[5],[5] then fitness = 3
+            if (chromosome.genes[i].get_value == 5):
+                # Add to the genes fitness
+                chromosome.genes[i].fitness += 1
+                # Add to the chromosomes fitness
+                chromosome.fitness += 1
+        return chromosome.fitness