Move '#define TF2C' below other defines

Putting defines above and removing the comment and compiling displays `lilac.sp(32) : error 417: cannot read from file: "tf2c"` error. This commit fixes that by putting the TF2C define below other defines so it should compile without any issues.

scripting/lilac.sp

@@ -16,13 +16,6 @@
 	along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 
-
-/* Uncomment this line to compile for Team Fortress 2 Classic.
- * Note: Doing so means the compiled plugin won't work correctly
- * for other source games. */
-// #define TF2C
-
-
 #include <sourcemod>
 #include <sdktools_engine>
 #include <sdktools_entoutput>
@@ -37,7 +30,10 @@
 #endif
 #define REQUIRE_PLUGIN
 #define REQUIRE_EXTENSIONS
-
+/* Uncomment below line to compile for Team Fortress 2 Classic.
+ * Note: Doing so means the compiled plugin won't work correctly
+ * for other source games. */
+//#define TF2C
 
 #pragma semicolon 1
 #pragma newdecls required