Added public files

Roughly added all public files. Probably missed some, though.
diff --git a/obj/tools/MGtool/man.d/xids b/obj/tools/MGtool/man.d/xids
new file mode 100644
index 0000000..67ef761
--- /dev/null
+++ b/obj/tools/MGtool/man.d/xids
@@ -0,0 +1,6 @@
+SYNOPSIS
+      xids <object>
+
+DESCRIPTION
+      Show the user id and the effective user id of the <object>.
+