(U-00021252): Add `sound@ja/on'; add `<-same' for M-04923.

(U-00021252): Add `sound@ja/on'; add `<-same' for M-04923.
(U+5737): Use `->subsumptive'.
(U-0002124E): New character.
(U-00021250): New character.
(U-00021259): Use `->subsumptive'; add `sound@ja/on'.
(U+5748): Use `->subsumptive'; add
`sound@ja/on/{kan|go}/s={a-place-name|hole}'.
(U+3628): Use `->denotational' and `->subsumptive'.
(U+5749): Use `->subsumptive'.
(U+574A): Use `->subsumptive'.
(U+574B): Use `->subsumptive'.
(U+574C): Use `->subsumptive'.
(U+574E): Use `->subsumptive'.
(U+575B): Add `<-simplified@CN' for G1-4C33; add `<-vulgar' for
J0-5460.
(U+577E): Use `->subsumptive'.
(U+577F): Use `->subsumptive'.
(U+5783): Use `->subsumptive'.
(U+5789): Use `->subsumptive'.
(U+5784): Use `ideographic-{radical|strokes}@ucs' instead of
`ideographic-{radical|strokes}'; use
`ideographic-{radical|strokes}@misc' instead of
`kangxi-{radical|strokes}'; add `<-simplified@CN' for G1-4222.
(U+57AA): Use `->subsumptive'.
(U+57CE): Use `->denotational'.
(J0-3E6B): Use `<-denotational' for U+57CE; separate JC3-47F9.
(U+57CC): Use `->subsumptive'.
(U-000212F2): Use `->subsumptive'.
(U+57CD): Use `->subsumptive'.
(U-0002F852): Use `<-denotational' for U+57CE; use `=shinjigen'
instead of `=shinjigen@1ed' for S1-1393; unify JC3-47F9.
(U+58DC): Use `->subsumptive'.
(U+58DF): Use `->subsumptive'.
(U+58E0): Use `->subsumptive'.