Optimizations/updates

1. Deleted duplicate functions in EasyGA
2. Added new index-dependent fitness example
3. GA now auto-sorts by best fitness immediately after the fitness is calculated across the board
4. Removed 'selected' status flag from the Chromosome flag
5. Added mating_pool attribute to the population
6. Changed other code to be in line with 4 and 5
7. Optimized tournament selection method

src/initialization/chromosome_structure/chromosome.py

@@ -6,7 +6,6 @@ class Chromosome:
         else:
             self.gene_list = genes
         self.fitness = None
-        self.selected = False
 
     def add_gene(self, gene, index = -1):
         if index == -1:

src/initialization/population_structure/population.py

@@ -7,6 +7,7 @@ class Population:
         else:
           self.chromosome_list = chromosomes
         self.fitness = None
+        self.mating_pool = []
 
     def get_closet_fitness(self,value):
         # Get the chomosome that has the closets fitness to the value defined