Lua: added 'matchcolor2' that uses DawnBringer's perceptual formula. Updated scripts numbering to 2.4

git-svn-id: svn://pulkomandy.tk/GrafX2/trunk@1797 416bcca6-2ee7-4201-b75f-2eb2f807beb1

share/grafx2/scripts/samples_2.4/picture/DrawgridOrthogonal_Index.lua

@@ -0,0 +1,11 @@
+-- draw grid - indexed colour - Copyright 2010 Paulo Silva
+-- This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; version 2 of the License. See <http://www.gnu.org/licenses/>
+w,h=getpicturesize();
+ok,xsiz,ysiz,c=inputbox("draw grid - indexed colour)","x size",8,1,64,5,"y size",8,1,64,6,"colour id",0,0,255,6);
+if ok==true then
+  for y=0,h-1,1 do
+    for x=0,w-1,xsiz do
+      putpicturepixel(x,y,c);end;end 
+  for y=0,h-1,ysiz do 
+    for x=0,w-1,1 do 
+      putpicturepixel(x,y,c);end;end;end