(U+4E07): Add `<-simplified@ucs' for U+842C.

(U+4E07): Add `<-simplified@ucs' for U+842C.
(U+4E0E): Add `<-simplified@ucs' for U+8207.
(BC-88C7): Use `<-formed@component/connect-right' instead of
`<-ideographic-component-forms'.
(U-00020029): Use `->subsumptive'; use
`ideographic-{radical|strokes}@{ucs|cns}' instead of `ideographic-';
add `ideographic-radical@cns*sources'.
(U-00020048): Use `->denotational'; use
`ideographic-{radical|strokes}@{ucs|cns}' instead of `ideographic-';
add `ideographic-radical@cns*sources'.