Add some MJ code points corresponding to Hanyo-Denshi IVSes.

Add some MJ code points corresponding to Hanyo-Denshi IVSes.
(A-compU+624B): New abstract node.
(U+624B): Add `<-denotational' for A-compU+624B.
(U+624B-var-001): New character; use `<-denotational' for
A-compU+624B.
(U+9FB5-var-001): Ditto.
(U+9FB5): Add `<-denotational' for A-compU+624B; apply new conventions
for glyph granularity.
(U-0002D80D): New character.
(U-00022A66): Add `<-denotational' for A-cgnU+4E2E; unify MJ036697 and
KOSEKI-132680.
(U+6258): Add `<-denotational@usage' for BUCS+6258; apply new
conventions for glyph granularity.
(U+6260): Apply new conventions for glyph granularity.
(U+6261): Add `ideographic-structure'; add `sound@ja/on/{kan|go}'; add
some relations for other characters.
(U-00022A76): Apply new conventions for glyph granularity.
(A-U+5E77-itaiji-001): New abstract node.
(U+5E77-itaiji-001): New character; use `<-denotational' for
A-U+5E77-itaiji-001.
(U+626F): Apply new conventions for glyph granularity.
(U+6279): Likewise.
(U+627F): Add `sound@ja/on/{kan|go}'; add some relations for other
characters.
(U-00022A8D): Use `->denotational' and `->subsumptive'.
(U+628C): Add `sound@ja/on/{kan|go}'; add `ideographic-structure'; add
some relations for other characters.
(U+628D): Add `<-denotational@usage' for A2-DJT-03701 and BUCS+62EF;
apply new conventions for glyph granularity.
(U+6294): Add `<-denotational@usage' for BUCS+6294; add
`ideographic-structure'; add `sound@ja/on/{kan|go}'; unify DJT-03707.
(U+6297): Apply new conventions for glyph granularity.
(U+6298): Add `<-simplified@Small-Seal' for U+3ABF.
(U-00022A92): Apply new conventions for glyph granularity.
(A-IWDSU+62CB): New abstract node.
(U+629B): Apply new conventions for glyph granularity; add
`<-denotational' for A-IWDSU+62CB.
(A-IWDSU+62D4): New abstract node.
(U+629C): Add `<-denotational' for A-IWDSU+62D4; apply new conventions
for glyph granularity.
(U+629E): Add `ideographic-structure'.
(U-00022A99): New character.
(U-0002D813): New character.
(U+62AD): Add `<-denotational@component' for A-IWDSU+62AD; apply new
conventions for glyph granularity.
(U+39D2): Likewise.
(U+62AF): Add `<-denotational@component' for A-IWDSU+62AF; apply new
conventions for glyph granularity.
(U+62B1): Add `ideographic-structure'; add `sound@ja/on/{kan|go}'.
(U+62B8): Apply new conventions for glyph granularity.
(U+62C5): Add `<-denotational@component' for A-IWDSU+62AF; add
`ideographic-structure'; add `sound@ja/on/{kan|go}'; add some
relations for other characters.
(U+62CB): Add `<-denotational' for A-IWDSU+62CB; apply new conventions
for glyph granularity.
(U+62CF): Apply new conventions for glyph granularity.
(U+62D0): Likewise.
(U+62D3): Likewise.
etc.