New feature: environment hazards pose danger to soldiers in certain sectors - first use are snakes that attack anybody in water sources in swamps.

Requires GameDir >= r2327.

git-svn-id: https://ja2svn.mooo.com/source/ja2/trunk/GameSource/ja2_v1.13/Build@8266 3b4a5df2-a311-0410-b5c6-a8a6f20db521

Tactical/TeamTurns.cpp

@@ -486,6 +486,8 @@ void EndTurnEvents( void )
 	// decay AI warning values from corpses
 	DecayRottingCorpseAIWarnings();
 
+	HandleEnvironmentHazard( );
+
 #ifdef JA2UB	
 	//Ja25 UB