Add lookup to create modules list from alias

Add lookup to create modules list from alias

We return a kmod_list when searching for an alias. Right now, it only
search for aliases in config files.

To use it, we create a list:
	list = NULL;
	kmod_module_new_from_lookup(..., &list);

And iterate over it to get the modules and their details:

	kmod_list_foreach(l, list) {
		struct kmod_mod *mod = kmod_module_get_module(l);
		...
		... kmod_module_get_name(mod);
		... kmod_module_get_path(mod);
	}

Aliases might contain globs and are match by using fnmatch().