(U+4F2B): Use `<-simplified@CN/misc' instead of `<-simplified@CN' for

(U+4F2B): Use `<-simplified@CN/misc' instead of `<-simplified@CN' for
U+4F47.
(A-IWDSU+50B3): New abstract node; use `<-denotational' for BUCS+50B3.
(U+50B3): Use A-IWDSU+50B3 instead of BUCS+50B3 as its mother.
(U-0002B74A): New character; use `<-denotational' for A-IWDSU+50B3.
(U-000203A4): Apply new conventions for glyph granularity.
(U+510D): Add `ideographic-structure'; add `sound@ja/on'.
(CU+510D): Add `ideographic-structure'; unify MJ007143, HD-KS013890
and KOSEKI-013890.
(UU+510D): Add `ideographic-structure'; unify JC3-93C3.
(U+513E): Apply new conventions for glyph granularity.