Fleshed out the framework of most of the wwctl overlay command group.

internal/app/wwctl/overlay/edit/root.go

@@ -15,12 +15,13 @@ var (
 	}
 	SystemOverlay bool
 	ListFiles bool
-
+	CreateDirs bool
 )
 
 func init() {
 	baseCmd.PersistentFlags().BoolVarP(&SystemOverlay, "system", "s", false, "Show system overlays instead of runtime")
 	baseCmd.PersistentFlags().BoolVarP(&ListFiles, "files", "f", false, "List files contained within a given overlay")
+	baseCmd.PersistentFlags().BoolVarP(&CreateDirs, "parents", "p", false, "Create any necessary parent directories")
 
 }