b(U+573A): Apply new conventions for glyph granularity; add

b(U+573A): Apply new conventions for glyph granularity; add
`<-denotational@usage' for BUCS+5834.
(U-000212CD): New character.
(U-00021307): New character.
(U-0002130C): New character.
(U-0002130D): New character.
(U-00021359): New character.
(U+364A): Apply new conventions for glyph granularity.
(U+57F8): Likewise; add `<-denotational@usage' for BUCS+57F8.
(U+5834): Add `<-denotational@usage' for BUCS+5834; add
`sound@ja/on/{kan|go}'.
(A-U+2136F-itaiji-002): New abstract node.
(U+2136F-itaiji-002): New character; use `<-denotational' for
A-U+2136F-itaiji-002.
(U-0002D3CD): Add ideographic-structure.
(U+5872): Add `<-denotational@usage' for BUCS+5834.
(U+3663): Apply new conventions for glyph granularity.
(U-00021475): New character.
(U-00021489): Apply new conventions for glyph granularity.
(U-000214A5): Add `<-Zhouwen' for U+81E7.
(BUCS+5834): New abstract node; unify A2-DJT-01798.
(BUCS+57F8): New abstract node; unify A2-DJT-01756.