Add some representative nodes.

Add some representative nodes.
(U+8C55): Use `->denotational' to integrate U-0002F9D2.
(U-0002F9D2): Unify GT-48746.
(U+8C56): Unify GT-48748 and GT-K03969.
(U+8C57): Apply new conventions for glyph granularity.
(JU+8C58): Unify S-7816; add `<-vulgar' for U+8C5A.
(U+8C5A): Apply new conventions for glyph granularity.
(U+8C5B): Likewise.
(U+8C59): Likewise.
(U+8C61): Likewise.
(U-00027C3C): Likewise; unify S-7819; add `<-vulgar' for U+8C61.
(U+8C63): Apply new conventions for glyph granularity.
(U+8C66): Likewise.
(U+8C69): Likewise.
(UU+8C6A): Add ideographic-structure.
(S-7826): New character.
(U+8C6B): Apply new conventions for glyph granularity.
(JU+8C6C): Add `<-original' for U+FA16.