(U-000206DB): Apply new conventions for glyph granularity.

(U-000206DB): Apply new conventions for glyph granularity.
(U-000206EB): Likewise.
(U+34E3): Likewise; add `<-denotational@usage' for BUCS+5272.
(U-000206F7): Apply new conventions for glyph granularity.
(U-00020700): New character.
(U+524D): Add `<-denotational@usage' for BUCS+524D.
(U-0002D0F2): New character.
(U+5272): Add `<-denotational@usage' for BUCS+5272; add
`sound@ja/on/{kan|go}'.
(CU+2F822): Add some relations for other characters.
(A-IWDSU+2078E): New abstract node.
(U-0002078E): Add `<-denotational' for A-IWDSU+2078E; apply new
conventions for glyph granularity.
(U-00020763): Add `<-denotational' for A-cgnU+23983; use
`->denotational' and `->subsumptive'.
(U-000207A3): New character.
(M-02138): Add `<-denotational' for U-000207A3; unify MJ031400 and
KOSEKI-025000.
(BUCS+5272): New abstract node; unify A2-DJT-00820.
(BUCS+524D): New abstract node; unify A2-DJT-00794.