Added henchman rental

Many areas, items, and creatures were adjusted for balance and aesthetics.

_module/nss/hench_noopenches.nss

@@ -0,0 +1,14 @@
+#include "hench_i0_conv"
+
+int StartingConditional()
+{
+    if (GetLocalInt(OBJECT_SELF, sHenchAutoOpenChest))
+    {
+        return FALSE;
+    }
+    return GetSkillRank(SKILL_SEARCH) * 3 / 4 >= GetHitDice(OBJECT_SELF);
+}
+
+
+
+