(A-IWDSU+4ED0): New abstract node.

(A-IWDSU+4ED0): New abstract node.
(U+4ED0): Add `<-denotational@component' for A-IWDSU+4ED0; add
`sound@ja/on'; add `<-simplified@misc' for UU+5098; add representative
nodes.
(U+4F1E): Apply new conventions for glyph granularity; use
`<-denotational@usage' instead of `<-denotational' for BUCS+5098.
(A-IWDSU+5002): Use `<-denotational@usage' instead of `<-denotational'
for BUCS+5002.
(U+345D): Apply new conventions for glyph granularity.
(U+505B): Add `ideographic-structure'; add `sound@ja/on/{kan|go}'.
(UU+505B): Unify MJ006921 and KOSEKI-010090; add representative nodes.
(CU+505B): Add representative node.
(U-000202C1): Apply new conventions for glyph granularity.
(U+5098): Likewise; use `<-denotational@usage' instead of
`<-denotational' for BUCS+5098.
(U-000203A4): Apply new conventions for glyph granularity.
(BUCS+5002): Unify A2-DJT-02902.