new feature: madlab's robot can be upgraded

requires gamedir r2642

https://thepit.ja-galaxy-forum.com/index.php?t=msg&goto=364403

git-svn-id: https://ja2svn.mooo.com/source/ja2/trunk/GameSource/ja2_v1.13/Build@9338 3b4a5df2-a311-0410-b5c6-a8a6f20db521

Strategic/Map Screen Interface Map Inventory.cpp

@@ -2549,6 +2549,10 @@ void BeginInventoryPoolPtr( OBJECTTYPE *pInventorySlot )
 						}
 					}
 				}
+				else if (AM_A_ROBOT(pSoldier))
+				{
+					// intentionally do nothing for madlab's robot
+				}
 				else
 				{
 					if (AutoPlaceObject(pSoldier,gpItemPointer,FALSE,NO_SLOT,TRUE)) //doesn't work for vehicles :p