- Add Daijiten numbers.

- Add Daijiten numbers.
- Use `<-denotational@usage' instead of `<-denotational' for BUCS
  (super abstract) character objects.
(U-00020628): Unify CB07225.
(AJ1-14041): Add `<-denotational@component' for A-U+98A8-itaiji-007.
(A-U+98A8-itaiji-007): New abstract node.
(DJT-00702): Unify U+98A8-itaiji-007; add `<-denotational@component'
for A-U+98A8-itaiji-007.
(U+98A8-itaiji-009): New character.
(U-00020631): Add A2-ESU+20631 as a target of `<-denotational@usage'.
(U+51EF): Apply new conventions for glyph granularity.
(A2-ESU+20631): New abstract node.