(A-U+268FB-itaiji-002): New abstract node; use `<-denotational' for

(A-U+268FB-itaiji-002): New abstract node; use `<-denotational' for
A-BC-8BA5.
(U+268FB-itaiji-002): New character; use `<-denotational' for
A-U+268FB-itaiji-002.
(U-0002F940): Add `ideographic-structure'.
(U-00025109): Add `ideographic-structure'; add ->interchangeable' for
JU+689F.
(A-cgnU+770C): New abstract node.
(U+770C): Add `<-denotational' for A-cgnU+770C; add
`ideographic-structure'; unify IWDS1-0113.
(UU+770C): Add `ideographic-structure'.
(U+7782): Apply new conventions for glyph granularity.