Resolve issues with NPC's hopping to the ceiling in small corridors

Improved grounding issues with NPC's during combat
Improved scenarios where NPC's need to be dragged out of the ground - they should correct themselves far more consistently
	- Scenarios where an NPC is coming up from the bottom floor, or from the top floor, they will correct much better
	- A video of these tests can be found here: https://www.youtube.com/watch?v=HtC7bVNM7ZQ&feature=youtu.be

zone/mob.h

@@ -492,6 +492,7 @@ public:
 	inline const float GetTarVZ() const { return m_TargetV.z; }
 	inline const float GetTarVector() const { return tar_vector; }
 	inline const uint8 GetTarNDX() const { return tar_ndx; }
+	inline const int8 GetFlyMode() const { return flymode; }
 	bool IsBoat() const;
 
 	//Group