Added public files

Roughly added all public files. Probably missed some, though.
diff --git a/obj/tools/MGtool/man.d/xhelp b/obj/tools/MGtool/man.d/xhelp
new file mode 100644
index 0000000..b0aa7d4
--- /dev/null
+++ b/obj/tools/MGtool/man.d/xhelp
@@ -0,0 +1,6 @@
+SYNOPSIS
+      xhelp
+
+DESCRIPTION
+      Show the main help file.
+