Entities/Movement: Correctly send MSG_MOVE_TELEPORT to the player when it is teleported, send MSG_MOVE_UPDATE_TELEPORT to nearby players when such thing happens.

Allow the usage of WriteMovementInfo on non-player units.

src/server/game/Handlers/VehicleHandler.cpp

@@ -36,7 +36,7 @@ void WorldSession::HandleDismissControlledVehicle(WorldPacket &recvData)
     }
 
     MovementInfo mi;
-    ReadMovementInfo(recvData, &mi);
+    _player->ReadMovementInfo(recvData, &mi);
 
     _player->m_movementInfo = mi;