(U+23B0B-itaiji-003): New character; use `<-denotational' for

(U+23B0B-itaiji-003): New character; use `<-denotational' for
A-cgnU+23B09; use `<-denotational@component' for A-compU+3C8B.
(A-U+23B0B-itaiji-001): New abstract node; use `<-denotational' for
A-cgnU+23B09; use `<-denotational@component' for A-compU+3C8B; unify
A-U+23B0B-itaiji-004.
(U+23B0B-itaiji-004): New character; use `<-denotational' for
A-U+23B0B-itaiji-001.
(U+23B0B-itaiji-001): Omit `<-denotational@component' for
A-compU+3C8B; use A-U+23B0B-itaiji-001 instead of A-cgnU+23B09 as its
mother.