Add some Adobe-Japan1-2 code points.

Add some Adobe-Japan1-2 code points.
(U+62A6): Use `->subsumptive' to separate representative nodes.
(U+62A8): Use `->denotational'.
(U+62A9): Likewise.
(U+63A2): Likewise.
(U+63F5): Use `->subsumptive'.
(U+6460): Use `->denotational' instead of `->subsumptive'.
(U+6461): Use `->denotational' and `->subsumptive'.
(U-00022CBB): Use `->subsumptive' to separate representative nodes.
(U+6462): Likewise.
(U+6463): Likewise.
(mother of JX2-2D50): Unify A-UU+649D and A-CU+2F8C5; use
`->denotational' instead of `->subsumptive'.
(U+649E): Use `->denotational' to separate S-3081.
(U+64CE): Use `->denotational'.
(U+64CF): Likewise.