(M-30757): Unify H8-E8BC; add `<-unknown' for U-00026B20.

(M-30757): Unify H8-E8BC; add `<-unknown' for U-00026B20.
(U-00026B20): Copied from Ideograph-R055-Two-Hands.el.
(U+82DB): Use `->denotational'.
(C1-5339): Use `<-denotational' for U+82DB; unify GT-40031 and
GT-K05032.
(U+44A7): Use `->denotational'.
(U+82DF): Use `->denotational'.
(C1-5348): Use `<-denotational' for U+82DF; unify GT-40087 and
GT-K05281.
(GT-40070): New variant of U+82DF.
(B-AD5E): Moved to U+82F1.
(M-30808): Unify GT-40028 and GT-K05025.
(U+8336): Use `->denotational' and `->subsumptive'.
(GT-K05142): New variant of U+8336.
(U+85B6): Use `->denotational' and `->subsumptive'.
(U-00026FAB): Use `->denotational'; integrate M-32199.