add array_count.h (#2514)

src/code/z_demo.c

@@ -1,7 +1,8 @@
 #pragma increment_block_number "gc-eu:128 gc-eu-mq:128 gc-jp:128 gc-jp-ce:128 gc-jp-mq:128 gc-us:128 gc-us-mq:128" \
                                "ique-cn:128 ntsc-1.0:0 ntsc-1.1:0 ntsc-1.2:0 pal-1.0:0 pal-1.1:0"
-#include "global.h"
+
 #include "libu64/gfxprint.h"
+#include "array_count.h"
 #include "controller.h"
 #include "gfx.h"
 #include "gfxalloc.h"
@@ -29,6 +30,8 @@
 #include "z64player.h"
 #include "z64save.h"
 
+#include "global.h"
+
 #include "assets/scenes/indoors/tokinoma/tokinoma_scene.h"
 
 #include "assets/scenes/overworld/ganon_tou/ganon_tou_scene.h"