Port subcategories

After    | File Name                             | Before
-----------------------------------------------------------
1m02.02s | Pseudofunctor/FromFunctor             | 1m05.48s
0m26.14s | Grothendieck/PseudofunctorToCat       | 0m27.55s
0m25.88s | Comma/Duals                           | 0m24.02s
0m24.89s | Category/Equality                     | 0m23.15s
0m24.74s | Pseudofunctor/Core                    | 0m25.29s
0m23.46s | Adjoint/Hom                           | 0m21.96s
0m12.96s | Adjoint/Duals                         | 0m14.12s
0m12.82s | Adjoint/UniversalMorphisms            | 0m12.85s
0m12.62s | Adjoint/Composition                   | 0m11.93s
0m11.26s | Adjoint/UnitCounitCoercions           | 0m10.54s
0m08.59s | Comma/InducedFunctors                 | 0m08.64s
0m07.16s | Groupoid                              | 0m07.52s
0m06.66s | Adjoint/Equality                      | 0m06.67s
0m06.63s | Category/Morphisms                    | 0m06.52s
0m05.74s | Adjoint/UnitCounit                    | 0m05.76s
0m05.52s | UniversalProperties                   | 0m04.17s
0m05.45s | SumPreCategory                        | 0m04.80s
0m04.16s | Groupoid/Duals                        | 0m04.48s
0m04.11s | Functor/Attributes                    | 0m03.81s
0m04.08s | Functor/Equality                      | 0m04.24s
0m03.67s | Groupoid/Functors                     | 0m03.54s
0m03.57s | Subcategory/SigmaMorphisms            |   N/A
0m02.70s | Comma/CommaCategory                   | 0m03.12s
0m02.68s | Grothendieck/ToSet                    | 0m02.88s
0m02.60s | BoolCategory                          | 0m02.50s
0m02.40s | NaturalTransformation/Pointwise       | 0m02.48s
0m02.21s | Subcategory/Sigma                     |   N/A
0m02.14s | Hom                                   | 0m01.78s
0m01.97s | NaturalTransformation/Duals           | 0m01.96s
0m01.97s | NaturalTransformation/Isomorphisms    | 0m01.78s
0m01.85s | Category/Product                      | 0m01.98s
0m01.80s | NaturalTransformation/Equality        | 0m01.88s
0m01.74s | FunctorCategory/Morphisms             | 0m01.65s
0m01.54s | NaturalTransformation/Product         | 0m01.45s
0m01.38s | Functor/Product                       | 0m01.26s
0m01.38s | NaturalTransformation/Composition     | 0m01.34s
0m01.32s | NaturalTransformation/CompositionLaws | 0m01.40s
0m01.12s | Subcategory/SigmaObjects              |   N/A
0m00.66s | Subcategory/Wide                      |   N/A
0m00.58s | InitialTerminalCategory               | 0m00.60s
0m00.49s | Comma/Projection                      | 0m00.45s
0m00.48s | Functor/Pointwise                     | 0m00.47s
0m00.46s | Functor/CompositionLaws               | 0m00.42s
0m00.37s | Common                                | 0m00.34s
0m00.36s | IndiscreteCategory                    | 0m00.35s
0m00.34s | NaturalTransformation/Identity        | 0m00.34s
0m00.33s | Discrete/Duals                        | 0m00.35s
0m00.31s | SetCategory                           | 0m00.32s
0m00.30s | Cat/Morphisms                         | 0m00.34s
0m00.30s | FunctorCategory                       | 0m00.26s
0m00.29s | Functor/Duals                         | 0m00.26s
0m00.29s | Cat                                   | 0m00.28s
0m00.25s | NatCategory                           | 0m00.25s
0m00.25s | Grothendieck/ToCat                    | 0m00.22s
0m00.25s | Functor/Composition                   | 0m00.30s
0m00.24s | Category/Objects                      | 0m00.24s
0m00.21s | Category/Core                         | 0m00.18s
0m00.19s | IsGroupoid                            | 0m00.28s
0m00.18s | Adjoint/Identity                      | 0m00.13s
0m00.18s | NaturalTransformation/Core            | 0m00.18s
0m00.17s | ComputableCat                         | 0m00.14s
0m00.17s | NaturalNumbersObject                  | 0m00.18s
0m00.16s | Adjoint                               | 0m00.16s
0m00.15s | Category/Duals                        | 0m00.20s
0m00.15s | Pseudofunctor                         | 0m00.13s
0m00.14s | NatCategory/Duals                     | 0m00.15s
0m00.14s | Peano                                 | 0m00.12s
0m00.12s | NaturalTransformation                 | 0m00.11s
0m00.12s | Functor/Core                          | 0m00.17s
0m00.11s | Functor/Identity                      | 0m00.12s
0m00.11s | Utf8                                  | 0m00.10s
0m00.11s | Grothendieck                          | 0m00.10s
0m00.10s | Category/StrictCategory               | 0m00.09s
0m00.10s | DiscreteCategory                      | 0m00.08s
0m00.10s | Category/UnivalentCategory            | 0m00.10s
0m00.09s | Functor                               | 0m00.06s
0m00.08s | Subcategory/Full                      |   N/A
0m00.08s | Subcategory                           |   N/A
0m00.06s | Category                              | 0m00.10s
0m00.06s | NotationsUtf8                         | 0m00.03s
0m00.05s | Notations                             | 0m00.05s
-----------------------------------------------------------
5m42.61s | Total                                 | 5m33.25s