- 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.
(A-U+5238-itaiji-001): New abstract node.
(U+5238-itaiji-001): New character; use `<-denotational' for
A-U+5238-itaiji-001.
(U-000206E8): Apply new conventions for glyph granularity.
(U-0002075F): Likewise.
(U+34F6): Use `->denotational' and `->subsumptive'.
(U-0002D110): New character.
(A-cgnU+5289): New abstract node.
(U+5289): Add `<-denotational' for A-cgnU+5289.