Major rework of getting captured quests and mechanics.

- new feature: added Tixa as another prison where capture mercs can be held (Alma is still primary choice though)
- fix: all mercs in the map will be taken POW when surrendered, however only 3 will appear in Alma/Tixa/N7, rest will be POW forever without chance of getting free
- fix: whenever player liberates any of the POW sectors (Alma, Tixa, N7) the respective quest/cutscene with POW will be disabled in that sector until enemy recapture the sector
- robot will be destroyed when surrendered as it makes no sense to inprison mechanical units
- externalized the GridNos for freeing POW mercs into Mod_Settings.ini

git-svn-id: https://ja2svn.mooo.com/source/ja2/trunk/GameSource/ja2_v1.13/Build@9095 3b4a5df2-a311-0410-b5c6-a8a6f20db521

Strategic/Quests.h

@@ -7,7 +7,8 @@
 //	Quest.ubStatus values
 #define QUESTNOTSTARTED					0
 #define	QUESTINPROGRESS					1
-#define QUESTDONE								2
+#define QUESTDONE						2
+#define QUESTCANNOTSTART				255
 
 #define MAX_QUESTS								255
 #define MAX_OLD_QUESTS							30
@@ -80,6 +81,7 @@ enum Quests
 	QUEST_KILL_DEIDRANNA = 25,
 
 	QUEST_KINGPIN_ANGEL_MARIA,		// Flugente: new quest: if the player rescued Maria without implicating himself, Kingpin hires bounty hunters to kill them
+	QUEST_HELD_IN_TIXA,//shadooow: new quest: captured mercs can appear in Tixa prison if conditions are met for players to free them
 #endif
 } ;
 /*