[DynamicZones] Bulk request dz member statuses on zone boot (#4769)

When dynamic zones are cached on zone boot each dz requests member
statuses from world separately. This causes a lot of network traffic
between world and booted zones when there are a lot of active dzs.

This changes it to make a single request to world on zone boot and a
single bulk reply back.

world/dynamic_zone_manager.h

@@ -30,6 +30,8 @@ public:
 	std::unordered_map<uint32_t, std::unique_ptr<DynamicZone>> dynamic_zone_cache;
 
 private:
+	void SendBulkMemberStatuses(uint32_t zone_id, uint16_t inst_id);
+
 	Timer m_process_throttle_timer{};
 	std::unordered_map<uint32_t, DynamicZoneTemplatesRepository::DynamicZoneTemplates> m_dz_templates;
 };