Add mappings between CJK Ext B and CNS 11643 plain 7.

Add mappings between CJK Ext B and CNS 11643 plain 7.
(U-00027F16): Use `->subsumptive' to separate representative nodes.
(U-00027F19): Likewise.
(U+8DA2): Use `->denotational' and `->subsumptive' to separate
representative nodes.
(U+8DA3): Use `->subsumptive'.
(U+8DA4): Use `->subsumptive' to separate representative nodes.
(U+47B8): Likewise.
(U+47BC): Likewise.
(U+8DA6): Use `->denotational' to separate representative nodes.
(U+47BD): Use `->subsumptive' to separate representative nodes.
(U+47BE): Use `->denotational' and `->subsumptive' to separate
representative nodes.
(U+47BF): Use `->subsumptive'; integrate M-37255.
(U-00027F50): Use `->subsumptive'.
(U+47C1): Use `->subsumptive' to separate representative nodes.
(U+47C6): Use `->denotational' and `->subsumptive' to separate
representative nodes.
(U-00027F82): Use `->subsumptive' to separate representative nodes.
(U+8DAE): Use `->subsumptive'.
(U-00027F95): Use `->subsumptive'.
(C7-5043): Unify U-00027F93 and M-37328.
(U+8DAF): Use `->denotational' and `->subsumptive'.
(U+8DB1): Add `<-simplified@CN' for U+8DB2.