Horsefly Swamp update

Creatures & encounter tables to support Horsefly swamp expansion.

_module/nss/cold_aura2.nss

@@ -0,0 +1,21 @@
+void main()
+{
+    effect eAcid;
+    effect eVis = EffectVisualEffect(VFX_IMP_FROST_S);
+
+    object oCaster = GetAreaOfEffectCreator();
+
+    object oTarget = GetFirstInPersistentObject();
+
+    while ( GetIsObjectValid(oTarget ) )
+    {
+        if ( GetIsEnemy(oTarget,oCaster) )
+        {
+            eAcid = EffectDamage(d6(2),DAMAGE_TYPE_COLD);
+
+            ApplyEffectToObject(DURATION_TYPE_INSTANT,eAcid,oTarget);
+            ApplyEffectToObject(DURATION_TYPE_INSTANT,eVis,oTarget);
+        }
+        oTarget = GetNextInPersistentObject();
+    }
+}