Merge branch 'patch_getszonecount' into develop

scriptlib.h

@@ -499,6 +499,7 @@ public:
 	static int32_t duel_check_summon_count(lua_State *L);
 	static int32_t duel_get_location_count(lua_State *L);
 	static int32_t duel_get_mzone_count(lua_State *L);
+	static int32_t duel_get_szone_count(lua_State *L);
 	static int32_t duel_get_location_count_fromex(lua_State *L);
 	static int32_t duel_get_usable_mzone_count(lua_State *L);
 	static int32_t duel_get_linked_group(lua_State *L);