Add Comma/Duals

After    | File Name                             | Before
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0m40.58s | Category/Equality                     | 0m39.22s
0m21.14s | NaturalTransformation/Equality        | 0m21.15s
0m18.29s | Functor/Equality                      | 0m17.10s
0m10.64s | Comma/CommaCategory                   | 0m10.87s
0m10.14s | Comma/Duals                           |   N/A
0m09.01s | Groupoid                              | 0m09.25s
0m07.58s | Category/Morphisms                    | 0m07.64s
0m04.42s | Grothendieck/ToSet                    | 0m04.50s
0m03.74s | Groupoid/Functors                     | 0m03.78s
0m02.30s | SumPreCategory                        | 0m02.42s
0m02.10s | Functor/CompositionLaws               | 0m02.13s
0m01.82s | ProductPreCategory                    | 0m01.82s
0m01.78s | NaturalTransformation/Duals           | 0m01.72s
0m01.36s | NaturalTransformation/Composition     | 0m01.35s
0m01.18s | NaturalTransformation/CompositionLaws | 0m01.18s
0m01.09s | InitialTerminalCategory               | 0m01.05s
0m00.82s | NatCategory                           | 0m00.90s
0m00.64s | BoolCategory                          | 0m00.65s
0m00.49s | SetCategory                           | 0m00.56s
0m00.28s | Common                                | 0m00.31s
0m00.25s | NaturalTransformation/Identity        | 0m00.28s
0m00.24s | FunctorPreCategory                    | 0m00.28s
0m00.24s | Functor/Composition                   | 0m00.26s
0m00.22s | Category/Objects                      | 0m00.24s
0m00.21s | Functor/Duals                         | 0m00.25s
0m00.17s | NaturalTransformation/Core            | 0m00.20s
0m00.16s | Category/Core                         | 0m00.18s
0m00.14s | ComputableCat                         | 0m00.10s
0m00.13s | Category/Duals                        | 0m00.14s
0m00.12s | Category/Category                     | 0m00.10s
0m00.12s | Peano                                 | 0m00.12s
0m00.11s | Functor/Identity                      | 0m00.09s
0m00.11s | Functor/Core                          | 0m00.14s
0m00.10s | Category/StrictCategory               | 0m00.08s
0m00.10s | Utf8                                  | 0m00.08s
0m00.10s | NaturalTransformation                 | 0m00.08s
0m00.10s | Grothendieck                          | 0m00.08s
0m00.08s | DiscreteCategory                      | 0m00.08s
0m00.08s | Functor                               | 0m00.11s
0m00.05s | NotationsUtf8                         | 0m00.04s
0m00.03s | Notations                             | 0m00.05s
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2m22.26s | Total                                 | 2m10.58s