Add some Adobe-Japan1-0 code points.

Add some Adobe-Japan1-0 code points.
(U+4672): Use `->denotational' and `->subsumptive'.
(A-CU+4674): New abstract node; use `<-denotational' for U+4674.
(CU+4674): Use A-CU+4674 instead of U+4674 as the mother.
(BC-8DA9): Likewise.
(A-MJ004487): New abstract node; use `<-denotational' for U+4674.
(MJ004487): Use A-MJ004487 instead of U+4674 as the mother.
(A-UU+4674): New abstract node; use `<-denotational' for U+4674.
(U+4674-var-001): New character; use `<-denotational' for A-UU+4674.
(UU+4674): Use A-UU+4674 instead of U+4674 as the mother.