(A-J0-4662): Unify IWDS1-0148.

(A-J0-4662): Unify IWDS1-0148.
(U+4EFA): Apply new conventions for glyph granularity.
(U+4F28): Likewise.
(U+501D): Likewise.
(UU+501D): Unify CB08926; add `->Zhouwen' for U-00020431.
(U-0002027E): New character.
(U-00020281): New character.
(U-00020283): New character.
(U-000202B4): Apply new conventions for glyph granularity.
(U+5076): Unify GT-K07751.
(UU+5085): Add `sound@ja/on/{kan|go}'; add `<-formed' for UU+6577; add
`<-interchangeable' for U+526F, U+9644, U+99D9, U+4ED8, U+7B26,
U+6B28, UU+752B and UU+6577; add `->mistakable' for UU+50B3.
(U-00020390): New character.
(U-00020431): Add `ideographic-structure'; add `<-Zhouwen' for
UU+501D.