(U-000226A9): New character; use `<-simplified@component' for U+396F.

(U+396F): Add `ideographic-structure'.
(JU+396F): Likewise.
(CU+396F): Likewise; unify BC-8D6D.
(A-UU+61C8): Use U+5FC4 instead of <CJK RADICAL HEART ONE> in
`ideographic-structure' of abstract character and abstract glyphs.
(HNG-KHM0339-0): Use U+89E3-itaiji-009 instead of "⿰角⿱⺈干" in
`ideographic-structure'.