New feature: random items allow spawn not themselves, but an item from a brad selection

- specify random items in RandomItems.xml
- when the game creates a random item, it searches all vialbe items according to random item class and picks one randomly
- this allows mappers to place items in maps that are more independent of the xml-set used, however the random items themselves msut be the same in map&mod
- can also be used to broaden the enemy gun/item choices selection
- for more reference, see http://www.bears-pit.com/board/ubbthreads.php/topics/310793.html#Post310793

FIX: sector curfew value was interpreted wrong

git-svn-id: https://ja2svn.mooo.com/source/ja2/trunk/GameSource/ja2_v1.13/Build@5594 3b4a5df2-a311-0410-b5c6-a8a6f20db521

Tactical/XML.h

@@ -68,6 +68,7 @@ typedef PARSE_STAGE;
 #define DRUGSFILENAME							"Drugs.xml"
 #define FOODFILENAME							"Food.xml"
 #define CLOTHESFILENAME							"Clothes.xml"
+#define RANDOMITEMFILENAME						"RandomItem.xml"
 #define	AMMOFILENAME							"AmmoStrings.xml"
 #define	AMMOTYPESFILENAME						"AmmoTypes.xml"
 #define	INCOMPATIBLEATTACHMENTSFILENAME			"IncompatibleAttachments.xml"
@@ -299,7 +300,7 @@ extern BOOLEAN WriteMercStartingGearStats();
 extern BOOLEAN ReadInExplosiveStats(STR fileName);
 extern BOOLEAN WriteExplosiveStats();
 
-// Flugente: externalisation of drugs
+// Flugente: drugs
 extern BOOLEAN ReadInDrugsStats(STR fileName);
 extern BOOLEAN WriteDrugsStats();
 
@@ -311,6 +312,10 @@ extern BOOLEAN WriteFoodStats();
 extern BOOLEAN ReadInClothesStats(STR fileName);
 extern BOOLEAN WriteClothesStats();
 
+// Flugente: random items
+extern BOOLEAN ReadInRandomItemStats(STR fileName);
+extern BOOLEAN WriteRandomItemStats();
+
 extern BOOLEAN ReadInAmmoStats(STR fileName);
 extern BOOLEAN WriteAmmoStats();