Complete representative nodes of `=adobe-japan1-6' glyphs.

Complete representative nodes of `=adobe-japan1-6' glyphs.
(U-0002BA4F): Add `<-denotational@component' for IWDS1-0398.
(IWDS1-0084): New abstract component.
(U+53E6): Add `<-denotational@component' for IWDS1-0084; add
`sound@ja/on/{kan|go}'; add `->mistakable' for U+53E7 and U-00020BA0.
(U+53E7): Add `<-denotational@component' for IWDS1-0084; apply new
conventions for glyph granularity.
(U-00020BA0): Add `<-denotational@component' for IWDS1-0084; add
representative nodes.
(U+5405): Add `<-denotational@component' for IWDS1-0398; apply new
conventions for glyph granularity.
(U+540C): Unify IWDS1-0321.
(U+540C-var-001): New character; use `<-denotational' for U+540C.
(IWDS1-0313): New abstract component; use `<-denotational' for
BUCS+5433.
(A-J0-3862): Use BUCS+5433 instead of IWDS1-0313 as its mother.
(U+5434): Likewise.
(U+5447): Add `sound@ja/on'.
(U+5489): Apply new conventions for glyph granularity.
(U+54E1): Add `<-denotational' for IWDS1-0292.
(U+54F6): Add `ideographic-structure'; add `sound@ja/on/{kan|go}'.
(IWDS1-0398): New abstract component.