(U-00022994): Fix ideographic-structure.

(U-00022994): Fix ideographic-structure.
(A-BC-88A4): New abstract node.
(BC-88A4): New character; use `<-denotational' for A-BC-88A4.
(U+621C-var-001): New character; use `<-denotational' for U+621C.
(A-U+621C-itaiji-001): New abstract node; use `<-denotational' for
A-cgnU+229C4.
(U+621C-itaiji-001): New character; use `<-denotational' for
A-U+621C-itaiji-001.
(A-cgnU+229E4): New abstract node.
(U-000229E4): Add `<-denotational' for A-cgnU+229E4; apply new
conventions for glyph granularity.
(U-0002EC8D): New character; use `<-denotational' for A-cgnU+229E4.
(U-00022A20): New character.