Here is the primary use case: you have several long texts (and/or binary
blobs) that you wish to load from the code (e.g: for the "want"/expected
values of tests) and you wish to conveniently edit them, track them and
maintain them. Using Dir::Manifest you can put each in a
separate file in a directory, create a manifest file listing all valid
filenames/key and then say something like 'my $text =
$dir->text("deal24solution.txt", {lf => 1})'. And hopefully it will be done
securely and reliably.
