Enable to pipe chains in the windows build

examples/pipe.c

@@ -5,8 +5,8 @@ int main(void)
 {
     INFO("------------------------------");
     CHAIN(IN(PATH("examples", "pipe.c")),
-          CHAIN_CMD(PATH("tools", "rot13"))
-          // CHAIN_CMD(PATH("tools", "hex")),
+          CHAIN_CMD(PATH("tools", "rot13")),
+          CHAIN_CMD(PATH("tools", "hex"))
           // OUT("output.txt")
          );
     INFO("------------------------------");