(JSP-3C77): Add `ideographic-{radical|strokes}' and `total-strokes'.

(JSP-3C77): Add `ideographic-{radical|strokes}' and `total-strokes'.
(BC-8BAB): Likewise; use `->subsumptive' to integrate GT-K00267.
(GT-K00266): Use `->subsumptive' to integrate <CJK RADICAL SNOUT TWO>
and BC-897C.
(<CJK RADICAL SNOUT TWO>): Separate GT-K00266; unify G0-6566 and
UU+5F50.
(U+5F54): Use `->subsumptive'.
(U+5F55): Likewise; add `=>daikanwa' for M-09918.
(C6-2B39): Unify U-0002F896.
(U-00022456): Use `->subsumptive'; use
`ideographic-{radical|strokes}@ucs' instead of
`ideographic-{radical|strokes}'; add
`ideographic-{radical|strokes}@cns' and
`ideographic-radical@cns*sources'.