(U+5E08): Add `ideographic-structure'; add `sound@ja/on'; add

(U+5E08): Add `ideographic-structure'; add `sound@ja/on'; add
`<-simplified@CN' for U+5E2B.
(A-cgnU+5E2B): Changed from U+5E2B.
(AJ1-02211): Unify U+5E2B instead of A-IWDSU+5E2B and UU+5E2B; use
A-cgnU+5E2B instead of U+5E2B as its mother.
(MJ057421): Use A-cgnU+5E2B instead of U+5E2B as its mother.
(U+5E42): Use `<-denotational@usage' instead of `<-denotational' for
BUCS+51AA.
(UU+5E42): Unify DJT-02852.
(U-00022173): New character.