+ missing #include

git-svn-id: https://svn.osgeo.org/grass/grass/trunk@45340 15284696-431f-4ddb-bdfa-cd5b030d7da7

ps/ps.map/r_colortable.c

@@ -5,6 +5,7 @@
 
 #include <stdlib.h>
 #include <string.h>
+#include <grass/colors.h>
 #include <grass/raster.h>
 #include <grass/glocale.h>
 #include "colortable.h"