Add functions/structures from colors.h

git-svn-id: https://svn.osgeo.org/grass/grass/trunk@38125 15284696-431f-4ddb-bdfa-cd5b030d7da7

swig/include/grass.i

@@ -3,6 +3,11 @@
 
 %include "grass/gis.h"
 %include "grass/gisdefs.h"
+%include "grass/colors.h"
+
+%{
+#include <grass/colors.h>
+%}
 
 %pythoncode %{
 import sys