Add Hanyo-Denshi/JT code points.

Add Hanyo-Denshi/JT code points.
(mother of J0-4245): Unify G-UU+59A5.
(mother of K0-6D2C): Unify A-KU+59FF and A-CU+59FF.
(K0-6D2C): Unify KU+59FF.
(C1-505C): Unify CU+59FF.
(mother of J0-3B51): Unify G-UU+59FF.
(U+5A1C): Use `->denotational' and `->subsumptive' to separate
representative nodes.
(U+36D5): Use `->subsumptive' to separate representative nodes.
(U+36D6): Use `->denotational' and `->subsumptive' to separate
representative nodes.
(U+5AE1): Use `->denotational' to separate JC3-49DC.
(A-UU+5B34): New character to integrate HD-JT-B003 and G0-5978.