Activating the ability to have more than one colors row.

Usefull for people with coarse input devices that need bigger buttons but got color buttons too narrow.
Just added the option, all the support code where already in place.

src/parse.h

@@ -44,6 +44,7 @@ struct cfginfo
   const char *parsertmp_sysconfig;
   const char *parsertmp_windowsize;
   const char *button_size;
+  const char *colors_rows;
   const char *print_delay;
   const char *printcommand;
 //  const char *promptless_save;