Palette2CTab
Palette2CTab lets your application copy a whole palette into a color table in one
operation.
srcPalette is the color palette you're going to duplicate.
destCTab is the color table where the palette's values are going.
Returns: none
and the color table are different sizes, the color table is shrunk or expanded to
match the palette. If either of the handles are NIL, no change takes place.