(U+72E1): Add `<-denotational@usage' for BUCS+72E1; apply new
conventions for glyph granularity.
(U+3E72): Apply new conventions for glyph granularity.
(U-
00024816): Use `->denotational' and `->subsumptive'.
(U+3E92): Apply new conventions for glyph granularity.
(U-
0002486B): Likewise.
(U+735F): Likewise.
(U+7377): Likewise; add `<-denotational@usage' for BUCS+7377.
(BUCS+72E1): New abstract node; unify A2-DJT-07144.
(A2-DJT-07216): New abstract node.
(BUCS+7377): New abstract node; unify A2-DJT-07247.