(U-0002574C): Add `sound@ja/on'; unify RUI6-E15C; add `->mistakable'

(U-0002574C): Add `sound@ja/on'; unify RUI6-E15C; add `->mistakable'
for U+79BE.
(U-00025769): Apply new conventions for glyph granularity.
(GT-K06202): New character.
(A-J0-4047): Unify A-IWDSU+7A05; add `ideographic-structure'.
(U+7A05): Apply new conventions for glyph granularity.
(U+7A0E): Add `ideographic-structure'; add representative nodes.
(U-0002584D): New character.
(A-IWDSU+7A57): New abstract node.
(U+7A42): Add `<-denotational' for A-IWDSU+7A57; add
`ideographic-structure'.
(UU+7A42): Omit `=>ucs@iwds-1'.
(HD-JT-B753): New character; use `<-denotational' for U+7A42.
(U-00025881): Apply new conventions for glyph granularity.
(U+7A57): Add `<-denotational' for A-IWDSU+7A57; add
`ideographic-structure'.
(UU+7A57): Add `ideographic-structure'; omit `=>ucs@iwds-1'.
(HD-JT-B75D): New character; use `<-denotational' for U+7A57.
(HD-JT-B760): Likewise.
(U+7A5F): Apply new conventions for glyph granularity.