(U+7F90): Apply new conventions for glyph granularity.

(U+7F90): Apply new conventions for glyph granularity.
(U+7F91): Likewise.
(A-cgnU+7FB8): New abstract node.
(A-IWDSU+7FB8): New abstract node; use `<-denotational' for
A-cgnU+7FB8.
(U+7FB8): Add `<-denotational' for A-IWDSU+7FB8; add
ideographic-structure.
(A-U+263DE-itaiji-001): New abstract node; use `<-denotational' for
A-cgnU+7FB8; unify A-U+263DE-itaiji-002.
(U+263DE-itaiji-002): New character; use `<-denotational' for
A-U+263DE-itaiji-001.
(U+263DE-itaiji-001): Likewise.
(U-000263DE): Add `<-denotational' for A-IWDSU+7FB8; add
`ideographic-structure'; add `sound@ja/on'.
(M-49514): Unify MJ045072 and KOSEKI-319360.
(U-0002E2B5): New character.