moved script related functions from functions.h to script.h

src/object/houseDoorExterior.c

@@ -3,6 +3,7 @@
 #include "flags.h"
 #include "functions.h"
 #include "room.h"
+#include "script.h"
 
 typedef struct {
     /*0x00*/ u16 unk0;

src/object/windcrest.c

@@ -2,6 +2,7 @@
 #include "entity.h"
 #include "functions.h"
 #include "save.h"
+#include "script.h"
 
 extern void sub_0807DD64(Entity*);
 extern void sub_0807DDE4(Entity*);