(A-IWDSU+826E): Add `<-denotational@component' for A-IWDSU+7680.

(A-IWDSU+826E): Add `<-denotational@component' for A-IWDSU+7680.
(A-BC-8B7C): Add `<-denotational@component' for A-IWDSU+7680.
(A-IWDSU+826F): Delete `=>ucs@cognate'.
(U-00026AD0): New character.
(U-0002E399): New character.
(A-U+477F-itaiji-001): New abstract node.
(U+477F-itaiji-001): New character; use `<-denotational' for
A-U+477F-itaiji-001.
(U+8271): Add `<-denotational@usage' for BUCS+8271; apply new
conventions for glyph granularity.
(U-00026AD2): Apply new conventions for glyph granularity.
(U+9FE5): New character.
(BUCS+8271): New abstract node; unify A2-DJT-09715.