Add some Japanese vocal sounds.

Add some Japanese vocal sounds.
(C1-4572): Use `<-denotational' for U+5145.
(U+5145): Separate all.
(J0-3D3C): Use `<-denotational' for U+5145; modify
`ideographic-structure'.
(G0-3364): Likewise.
(J78-437B): Moved into U+5146.
(U+5146): Use `->subsumptive'.
(J0-513C): Moved into U+514C.
(U+514C): Use `->subsumptive'.
(U+514D): Separate all.
(G0-4362): Use `<-denotational' for U+514D.
(J0-4C48): Likewise.
(U+FA32): Likewise.
(U+514E): Use `->subsumptive'.
(J0-4546): Moved into U+514E.
(U+515A): Simplify `ideographic-structure'.