Prisoner feature bugfix (#110)

* Allow game to continue after offering to surrender to enemies

* Fix issues related to surrender and POW quests

- Quests were ended prematurely if one had prisoners in both alma and tixa
- Strategic status flags for rescue/escape were not set properly
- Only the maximum amount a prison can hold will be taken as POWs, rest of the mercs will either escape or have to fight to the death, to prevent a player having unrescuable POWs
- Capturing a mercenary had a lot of functions called that should not have been, IF the merc is not going to be captured after all

* Switch all tactical surrender calls to use one unified function

* Only mercs that are capable can escape

Incapacitated mercs left behind will die.
Should probably prioritize incapacitated mercs to be captured by the enemy to prevent needless deaths

* Combine pow quest state changes into one function

* Add JumpIntoEscapedSector to header file

* Allow enemy to demand surrender even if they already have POWs in Tixa and Alma

* Remove surrender from UB

* Address review feedback

Strategic/Strategic Movement.cpp

@@ -4453,7 +4453,7 @@ void CheckMembersOfMvtGroupAndComplainAboutBleeding( SOLDIERTYPE *pSoldier )
 		return;
 	}
 
-	// make sure there are members in the group..if so, then run through and make each bleeder compain
+	// make sure there are members in the group..if so, then run through and make each bleeder complain
 	pPlayer = pGroup->pPlayerList;
 
 	// is there a player list?
@@ -6274,4 +6274,4 @@ void GetInfoFromGroupsInSector( INT16 sSectorX, INT16 sSectorY, UINT8 ubTeam, BO
 		}
 		pGroup = pGroup->next;
 	}
-}
+}