sketch out stepping/eval exemplar testing; step-to-exit first pass

src/raddbg/raddbg.mdesk

@@ -891,6 +891,7 @@ RD_RegTable:
   {B32               non_graphical                    NonGraphical                            }
   {B32               prefer_new_tab                   PreferNewTab                            }
   {B32               activate_with_single_click       ActivateWithSingleClick                 }
+  {B32               disable_addresses                DisableAddresses                        }
   {Dir2              dir2                             Dir2                                    }
   {String8           string                           String                                  }
   {String8           cmd_name                         CmdName                                 }