(U+5149): Add `<-denotational@component' for A-IWDSU+5149 [change

(U+5149): Add `<-denotational@component' for A-IWDSU+5149 [change
unifiable range; use A-IWDSU+5149 to preserve the previous range];
modify `ideographic-structure' to narrow unifiable range.
(A-U+5149-itaiji-001): Use A-IWDSU+5149 instead of U+5149 as the
mother.
(A-cgnU+514C): Delete `<-denotational' for BUCS+514C.
(U+514A): Add `<-denotational@usage' for BUCS+514C.
(UU+514A): Unify DJT-00601.
(A-IWDSU+514C): Modify structure.
(U+514C): Add `<-denotational@usage' for BUCS+514C; apply new
conventions for glyph granularity.
(U+5151): Likewise.
(U-0002047D): Apply new conventions for glyph granularity.
(A-IWDSU+5149): New abstract node.
(BUCS+514C): Unify A2-DJT-00569.