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

Add mappings between CJK Ext-B and CNS 11643 plain 7.
(U-0002947D): Integrate M-43413.
(U+9829): Use `->denotational' to integrate U-0002FA00.
(U-0002949B): Unify M-43466.
(U-0002949E): Integrate M-43469.
(M-43471): Add `<-same' for U+4AB6.
(U+982F): Use `->subsumptive' to separate representative nodes.
(U-000294D6): Use `->denotational' instead of `->subsumptive'.
(U-000294E1): Integrate M-43547.
(U+9845): Use `->denotational' instead of `->subsumptive'.
(U-00029500): Likewise.
(U+4ADA): Likewise.
(U-0002950B): Likewise.
(U+4AE2): Use `->denotational' and `->subsumptive' to separate
representative nodes.
(U+4AE7): Use `->subsumptive' to separate representative nodes.
(U+985F): Use `->denotational' and `->subsumptive'.
(U-00029548): Copied from Ideograph-R157-Foot.el; integrate M-49890.
(U-0002954A): Use `->denotational' instead of `->subsumptive'.
(U-0002954E): Integrate M-43676.
(U-0002954F): Use `->subsumptive' to separate representative nodes.
(U+4AEC): Likewise.
(U+4AEE): Use `->denotational' to separate representative nodes.
(U+9865): Use `->subsumptive' to separate representative nodes.
(U-00029555): Use `->denotational' instead of `->subsumptive'.
(U-00029556): Likewise.
(U-0002955C): New character.
(U-00029574): Integrate M-43727.
(U-00029578): Use `->denotational' instead of `->subsumptive'.
(U-00029587): Likewise.
(U-00029592): New character.