(U+56D8): Use `<-denotational@usage' instead of `<-denotational' for

(U+56D8): Use `<-denotational@usage' instead of `<-denotational' for
BUCS+56DE; unify DJT-01604.
(A-IWDSU+56DE): Use `<-denotational@usage' instead of `<-denotational'
for BUCS+56DE.
(U+56DE-itaiji-002): Likewise.
(A-U+26270-itaiji-001): New abstract node.
(U+26270-itaiji-001): New character; use `<-denotational' for
A-U+26270-itaiji-001.
(U-000211EB): Apply new conventions for glyph granularity.
(M-04780): Unify IU+211EB, MJ032867 and KOSEKI-054570; add
`<-denotational' for U-000211EB.
(U-000211ED): Unify M-04781, MJ032869 and KOSEKI-054580; apply new
conventions for glyph granularity.
(U-000211E7): Unify M-04782; apply new conventions for glyph
granularity.
(U-000211E6): Unify M-04783; apply new conventions for glyph
granularity.
(U-000211EC): Apply new conventions for glyph granularity.
(M-04784): Unify IU+211EC; add `<-denotational' for U-000211EC.
(U-000211EE): Unify M-04785; apply new conventions for glyph
granularity.
(U-000211E9): Apply new conventions for glyph granularity.
(M-04786): Unify IU+211E9; add `<-denotational' for U-000211E9.
(U+5706): Use `<-denotational@usage' instead of `<-denotational' for
BUCS+5713; apply new conventions for glyph granularity.
(A-IWDSU+5713): New abstract node; use `<-denotational@usage' for
BUCS+5713.
(U+570E): Add `sound@ja/on'; add `<-denotational' for A-IWDSU+5713.
(U+5713): Add `<-denotational' for A-IWDSU+5713.
(A2-DJT-01607): New abstract node.
(BUCS+5713): Unify A2-DJT-01645.
(BUCS+56DE): Unify A2-DJT-01609.