Phase 1 Offline Trading

Cleanup and testing
Zone updated builds ok
World updated builds ok

Update guild_base.h

common/emu_oplist.h

@@ -71,6 +71,8 @@ N(OP_BuyerItems),
 N(OP_CameraEffect),
 N(OP_Camp),
 N(OP_CancelSneakHide),
+N(OP_CancelOfflineTrader),
+N(OP_CancelOfflineTraderResponse),
 N(OP_CancelTask),
 N(OP_CancelTrade),
 N(OP_CashReward),
@@ -381,6 +383,7 @@ N(OP_MultiLineMsg),
 N(OP_NewSpawn),
 N(OP_NewTitlesAvailable),
 N(OP_NewZone),
+N(OP_Offline),
 N(OP_OnLevelMessage),
 N(OP_OpenContainer),
 N(OP_OpenDiscordMerchant),