Added public files

Roughly added all public files. Probably missed some, though.
diff --git a/std/mailcabin.c b/std/mailcabin.c
new file mode 100644
index 0000000..1a94e85
--- /dev/null
+++ b/std/mailcabin.c
@@ -0,0 +1,12 @@
+#pragma strict_types,save_types
+
+inherit "/p/service/loco/std/mailcabin";
+
+void create() {
+  if (!clonep() || object_name(this_object()) == __FILE__[0..<3]) {
+      set_next_reset(-1);
+      return;
+  }
+  ::create();
+}
+