(U+5305): Use `<-denotational@usage' instead of `<-denotational' for

(U+5305): Use `<-denotational@usage' instead of `<-denotational' for
BUCS+5305; use "⿵" instead of "⿻".
(UU+5305): Use "⿵" instead of "⿻"; unify DJT-00924.
(U+5305-itaiji-002): Add `<-denotational@component' for U-0002D073 and
A-MJ058438; use "⿵" instead of "⿱".
(A-cgnU+5306): Delete `<-denotational@usage' for BUCS+5306.
(U+5306): Add `<-denotational@usage' for BUCS+5306.
(U-0002F82A): Unify DJT-00923.
(U+5306-itaiji-002): Add `<-denotational@usage' for BUCS+5306.
(U+5307):Ditto.
(BUCS+5305): New abstract node; unify A2-DJT-00924.
(BUCS+5306): Unify A2-DJT-00923.