add columnia:rusty_block to technic cnc

depends.txt

 default
 wool
 3d_armor
+columnia ?
 trunks ?
 irc ?
 farming ?

technic.lua

@@ -2,3 +2,7 @@ technic.cnc.register_all("default:stonebrick",
                 {cracky=3},
                 {"default_stone_brick.png"},
                 "Stonebrick")
+technic.cnc.register_all("columnia:rusty_block",
+                {cracky=3},
+                {"columnia_rusty_block.png"},
+                "Rusty Block")