- Add some missing Hanyo-Denshi/KS code points.

- Add some missing Hanyo-Denshi/KS code points.
- Add `=decomposition@hanyo-denshi' for some abstract glyph-forms of
  Hanyo-Denshi/KS.
- Add some MJ code points corresponding to Hanyo-Denshi IVSes.
(A-U+520D-itaiji-002): New abstract node.
(U+520D-itaiji-002): New character; use `<-denotational' for
A-U+520D-itaiji-002.
(A-U+5F50-itaiji-008): New abstract node.
(U+5F50-itaiji-008): New character; use `<-denotational' for
A-U+5F50-itaiji-008.
(UU+38C7): Unify DJT-03090.
(U+38C7-itaiji-013): New character; use `<-denotational' for U+38C7.
(A-IWDSU-5F54): Add `ideographic-structure'.
(A-U+675F-itaiji-007): Unify A-U+675F-itaiji-011.
(U+675F-itaiji-011): New character; use `<-denotational' for
A-U+675F-itaiji-007.
(A-U+675F-itaiji-010): New abstract node.
(U+675F-itaiji-010): New character; use `<-denotational' for
A-U+675F-itaiji-010.
(U-00022462): Use `->denotational' and `->subsumptive'.
(A-cgnU+5F59): New abstract node.
(A-IWDSU-5F59): Use `<-denotational' for A-cgnU+5F59.
(MJ068054): Unify KOSEKI-112430 instead of HD-KS112430.
(HD-TK01030070): Modify structure.
(HD-KS112430): Unify MJ068054 instead of MJ057480; separate SJG-2307;
use A-cgnU+5F5A instead of U+5F5A as its mother.
(U-000232B8): Apply new conventions for glyph granularity.
(U+5F60): Add `<-denotational@usage' for A2-DJT-03099; add
`sound@ja/on'; add `<-formed' for U+84A6.
(UU+5F60): Add `ideographic-structure'.
(A2-DJT-03099): New abstract node.