Added public files

Roughly added all public files. Probably missed some, though.
diff --git a/sys/living/skills.h b/sys/living/skills.h
new file mode 100644
index 0000000..ef2572c
--- /dev/null
+++ b/sys/living/skills.h
@@ -0,0 +1,33 @@
+// MorgenGrauen MUDlib
+//
+// skills.h -- Defines and prototypes for /std/living/skills.c
+//
+// $Id: skills.h 8694 2014-02-20 23:06:50Z Zesstra $
+
+#ifndef _LIVING_SKILLS_H_
+#define _LIVING_SKILLS_H_
+
+#endif // _LIVING_SKILLS_H_
+
+#ifdef NEED_PROTOTYPES
+#ifndef _LIVING_SKILLS_H_PROTO_
+#define _LIVING_SKILLS_H_PROTO_
+public    varargs int     UseSpell(string str, string spell);
+
+public    varargs mapping QuerySkill(string sname, string gilde);
+public    varargs int     QuerySkillAbility(mixed sname, mixed argl);
+
+protected varargs mixed   LimitAbility(mixed sinfo, int diff);
+public    varargs mixed   UseSkill(string skill, mapping args);
+
+public    varargs void    LearnSkill(string sname, int add, int diff);
+public    varargs void    ModifySkill(string sname, mixed val, int diff, 
+                                      string gilde);
+public    varargs int     SetSpellFatigue(int duration, string key);
+public    varargs int     CheckSpellFatigue(string key);
+public            void    DeleteSpellFatigue(string key);
+
+#endif // _LIVING_SKILLS_H_PROTO_
+
+#endif // NEED_PROTOTYPES
+