Core/Vehicles:

- Allow specifying of exit position for Unit::ExitVehicle
- On Vehicle::InstallAccessory, despawn any accessory in the current seat with the same entry with TEMPSUMMON_MANUAL_DESPAWN type
- Remove hacky TELEPORT_ACK packet on vehicle exit
- Remove some redundant packet send operations that were already handled elsewhere

src/server/game/Entities/Creature/TemporarySummon.h

@@ -35,6 +35,7 @@ class TempSummon : public Creature
         void SaveToDB(uint32 /*mapid*/, uint8 /*spawnMask*/, uint32 /*phaseMask*/) {}
         Unit* GetSummoner() const;
         uint64 const& GetSummonerGUID() { return m_summonerGUID; }
+        TempSummonType const& GetSummonType() { return m_type; }
 
         const SummonPropertiesEntry * const m_Properties;
     private: