(A-IWDSU+21D3B): New abstract node.

(A-IWDSU+21D3B): New abstract node.
(U-00021D32): Add `<-denotational' for A-IWDSU+21D3B; apply new
conventions for glyph granularity.
(U-00021D38): Add `<-denotational@component' for A-IWDSU+21D38; apply
new conventions for glyph granularity.
(U-00021D34): New character; use `<-denotational@component' for
A-IWDSU+21D38.
(U-00021D3B): Add `<-denotational' for A-IWDSU+21D3B; apply new
conventions for glyph granularity.
(A-IWDSU+5D46): New abstract node.
(U+5D46): Add `<-denotational' for A-IWDSU+5D46; add
`<-denotational@usage' for BUCS+5D46; apply new conventions for glyph
granularity.
(U+5D47): Likewise.
(A-IWDSU+21D38): New abstract node.
(BUCS+5D46): New abstract node; unify A2-DJT-02653.