Study of CP violation in B[superscript ∓] → D[superscript ∓] (h =K,π) with the modes D → K[superscript ∓]π[superscript ±]π[superscript 0], D → π[superscript +]π[superscript -]π[superscript 0] and K[superscript +]K[superscript -]π[superscript 0]