(U+76EE): Add `sound@ja/on/{kan|go}'; add some relations for other

(U+76EE): Add `sound@ja/on/{kan|go}'; add some relations for other
characters.
(U-000250E6): Apply new conventions for glyph granularity.
(U-00025115): Add `<-denotational@component' for A-IWDSU+82DC; add
some relations for other characters; add representative nodes.
(MJ046348): Add `<-same' for U-00025115.
(A-cgnU+2511B): New abstract node.
(M-23203): Add `<-denotational' for A-cgnU+2511B; add
`ideographic-structure'; unify MJ042211 and KOSEKI-259510.
(U-0002511B): Add `<-denotational' for A-cgnU+2511B; add
representative nodes.
(U-0002511A): New character.
(U+7736): Apply new conventions for glyph granularity.
(U-000251A4): Add `ideographic-structure'; add `sound@ja/on'; add
`<-ancient' for U+76EE; add representative nodes.
(U+7792): Apply new conventions for glyph granularity.
(U+779E): Likewise.
(U+407E): Add `ideographic-structure'; add `sound@ja/on/{kan|go}'.
(C4-636F): Unify CU+407E; add `ideographic-structure'; add some
relations for other characters; add representative nodes.