libgis: kelvin color table added

git-svn-id: https://svn.osgeo.org/grass/grass/branches/releasebranch_7_0@62777 15284696-431f-4ddb-bdfa-cd5b030d7da7

lib/gis/colors.desc

@@ -20,6 +20,7 @@ grey.eq: histogram-equalized grey scale
 grey.log: histogram logarithmic transformed grey scale
 gyr: green through yellow to red
 haxby: relative colors for bathymetry or topography
+kelvin: blue to red for temperature in Kelvin scale
 ndvi: Normalized Difference Vegetation Index colors
 ndwi: Normalized Difference Water Index colors
 population: color table covering human population classification breaks

lib/gis/colors/kelvin

@@ -0,0 +1,224 @@
+# Color rules for MODIS SST
+#  Original palettes from Goddard's OceanColor
+#    http://oceancolor.gsfc.nasa.gov/PRODUCTS/colorbars.html
+#  Extended to -3degC to cover Pathfinder AVHRR data
+#  Extended to -80degC to cover land surfaces
+#  Converted from 'celsius' palette for various Temperature products
+#
+nv white
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