(A-IWDSU+52C0): New abstract node.

(A-IWDSU+52C0): New abstract node.
(U+52C0): Add `<-denotational' for A-IWDSU+52C0; apply new conventions
for glyph granularity.
(U+52C1): Use `<-denotational@component' instead of `<-denotational'
for BUCS+52C1.
(U+52CA): Add `<-denotational' for A-IWDSU+52C0; apply new conventions
for glyph granularity.
(A-cgnU+52DD): New abstract node; use `<-denotational@usage' for
BUCS+52DD.
(U+52DD): Use `<-denotational@component' instead of `<-denotational'
for BUCS+52DD; add `<-denotational' for A-cgnU+52DD; use "⿸𰮤力"
instead of "⿰月劵"; apply new conventions for glyph granularity.
(U+52DD-itaiji-002): New character; use `<-denotational' for
A-cgnU+52DD.
(HNG-KHI0278-0): Use `<-subsumptive' for U+52DD-itaiji-002 instead of
`<-denotational' for U+52DD.
(HNG-KHM0220-0): Use `<-subsumptive' for g2-U+52DD-itaiji-002 instead
of `<-denotational' for U+52DD.