Add DynamicZone class for expedition instancing

Add DynamicZone sql table schema

Add DynamicZones logging category

Modify CreateExpedition to take DynamicZone and ExpeditionRequest objects

Implement DynamicZone compass, safereturn, and zone-in coordinates.

Implement live-like DynamicZone instance kick timer for removed members

Implement updating multiple client compasses (supports existing quest compass)

fix: Send client compass update after entering zones to clear existing compass

Implement Client::MovePCDynamicZone to invoke DynamicZoneSwitchListWnd
when entering a zone where client has multiple dynamic zones assigned

Implement OP_DzChooseZoneReply handling

Add Lua api methods for expedition's associated dynamic zone

Add #dz list gm command to list current DynamicZone instances from database

zone/entity.h

@@ -49,6 +49,7 @@ class Raid;
 class Spawn2;
 class Trap;
 
+struct DynamicZoneSafeReturn;
 struct GuildBankItemUpdate_Struct;
 struct NewSpawn_Struct;
 struct QGlobal;
@@ -496,6 +497,8 @@ public:
 	void	UpdateFindableNPCState(NPC *n, bool Remove);
 	void	HideCorpses(Client *c, uint8 CurrentMode, uint8 NewMode);
 
+	void GateAllClientsToSafeReturn();
+
 	uint16 GetClientCount();
 	void GetMobList(std::list<Mob*> &m_list);
 	void GetNPCList(std::list<NPC*> &n_list);