Raster styles - interpolate color ranges #196
Add ability to dynamically interpolate color ranges when there are more values then colors in the requested palette. Most of the non dynamic palettes have ten colors, and when you have more ranges then 10 you get the last color for all ranges over 10. This fix turns the fixed palettes into dynamic ones if there are more ranges than colors.
Signed-off-by: egouge email@example.com