Added public files

Roughly added all public files. Probably missed some, though.
diff --git a/secure/simul_efun/spare/query_load_average.c b/secure/simul_efun/spare/query_load_average.c
new file mode 100644
index 0000000..3b36f0e
--- /dev/null
+++ b/secure/simul_efun/spare/query_load_average.c
@@ -0,0 +1,16 @@
+/* This sefun is to provide a replacement for the efun query_load_average().
+ * Feel free to add it to your mudlibs, if you have much code relying on that.
+ */
+
+#if ! __EFUN_DEFINED__(query_load_average)
+
+#include <driver_info.h>
+
+string query_load_average()
+{
+    return efun::sprintf("%.2f cmds/s, %.2f comp lines/s",
+        efun::driver_info(DI_LOAD_AVERAGE_COMMANDS),
+        efun::driver_info(DI_LOAD_AVERAGE_LINES));
+}
+
+#endif