(UU+38C7): Unify S-2300.

(UU+38C7): Unify S-2300.
(A-U+38C7-itaiji-003): New abstract node.
(U+38C7-itaiji-003): New character; use `<-denotational' for
A-U+38C7-itaiji-003.
(A-IWDSU+5F59): New abstract node.
(U+5F59): Add `<-denotational' for A-IWDSU+5F59; add
`ideographic-structure'; add representative nodes.
(U+5F5A): Add `<-denotational' for A-IWDSU+5F59; add
`ideographic-structure'; add `sound@ja/on'.
(UU+5F5A): Unify HD-IP-5F5A; add `ideographic-structure'.
(S-2307): Unify HD-KS112430.
(HD-TK01030070): New character; use `<-denotational' for U+5F5A.
(U-0002246F): Apply new conventions for glyph granularity.
(U-00022477): Likewise.
(U-0002247A): New character.