IMAGE: Use palette class in Cinepak decoder. #6466
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The Cinepak decoder had an unweighted euclidean color distance calculation for palette matching. This was moved and rewritten to a color distance method on the palette class.
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The Cinepak decoder had an unweighted euclidean color distance calculation for palette matching. This was moved and rewritten to a color distance method on the palette class.
Tested with Myst demo for quicktime usage and Journeyman Project 2 demo for AVI / Video for Windows dithering usage.