Added public files

Roughly added all public files. Probably missed some, though.
diff --git a/secure/simul_efun/spare/set_heart_beat.c b/secure/simul_efun/spare/set_heart_beat.c
new file mode 100644
index 0000000..a3995eb
--- /dev/null
+++ b/secure/simul_efun/spare/set_heart_beat.c
@@ -0,0 +1,24 @@
+/* This sefun is to provide a replacement for the efun set_heart_beat().
+ * Feel free to add it to your mudlibs, if you have much code relying on that.
+ */
+
+#if ! __EFUN_DEFINED__(set_heart_beat)
+
+#include <configuration.h>
+
+int set_heart_beat(int flag)
+{
+    object ob = efun::previous_object();
+    int hb = efun::object_info(ob, OC_HEART_BEAT);
+
+    if (!flag == !hb)
+        return 0;
+
+    efun::configure_object(ob, OC_HEART_BEAT, flag);
+
+    return 1;
+}
+
+#endif
+
+