(U+4EED): Apply new conventions for glyph granularity.

(U+4EED): Apply new conventions for glyph granularity.
(A-U+343A-itaiji-004): New abstract node; use `<-denotational' for
A-IWDSU+4E51.
(U+343A-itaiji-004): New character; use `<-denotational' for
A-U+343A-itaiji-004.
(A-U+4F59-itaiji-002): New abstract node.
(GT-K01830): New character; use `<-denotational' for
A-U+4F59-itaiji-002; unify U+4F59-itaiji-002.
(U+4F8F): Add `<-denotational@usage' for BUCS+4F8F; add
`sound@ja/on/{kan|go}'; unify DJT-00290; add some relations for other
characters.
(U+4F9C): Add `<-denotational@usage' for A2-DJT-00300; unify
DJT-00300.
(GT-K03992): Use `<-subsumptive' for UU+3452 instead of
`<-denotational' for U+3452.
(U-0002028A): Add `<-denotational' for A-IWDSU+29681; apply new
conventions for glyph granularity.
(U+4FF6): Add `<-denotational@usage' for BUCS+4FF6; apply new
conventions for glyph granularity.
(U+4FFA): Add `<-denotational@usage' for BUCS+4FFA; add `sound@ja/on'.
(UU+501A): Add UU+525E as a target of `->interchangeable'.
(U+501C): Separate BUCS+501C; add `<-denotational@usage' for
BUCS+501C; add `sound@ja/on/{kan|go}'.
(JU+501C): Unify DJT-00380; add some relations for other characters.
(U+502A): Add `<-denotational@usage' for BUCS+502A; apply new
conventions for glyph granularity.
(U-000202E1): Add `ideographic-structure'.
(IU+202E1): Use UU+98DF instead of U+98DF as a component.
(U-000202D7): Apply new conventions for glyph granularity.
(M-00914): Add `<-denotational' for U-000202D7; unify IU+202D7,
MJ030692 and KOSEKI-010590.
(UU+50B8): Use UU+723D instead of U+723D as a component.
(U+50BD): Apply new conventions for glyph granularity.
(A-JU+50E9): Add `ideographic-structure'.
(U+50E9): Add `<-denotational@usage' for BUCS+50E9; apply new
conventions for glyph granularity.
(DJT-00507): New character; use `<-denotational' for U+50E9.
(U+50F4): Apply new conventions for glyph granularity.
(BUCS+4F8F): New abstract node; unify A2-DJT-00290.
(A2-DJT-00300): New abstract node.
(BUCS+4FF6): New abstract node; unify A2-DJT-00354.
(BUCS+4FFA): New abstract node; unify A2-DJT-00357.
(BUCS+501C): New abstract node; unify A2-DJT-00380.
(BUCS+502A): New abstract node; unify A2-DJT-00390.
(BUCS+50E9): New abstract node; unify A2-DJT-00507.