modules to make files persistent within the Catmandu framework

 Each Catmandu::FileStore is a Catmandu::Store and inherits all its methods.
 .
 A Catmandu::FileStore is package to store and retrieve binary content
 in an filesystem, memory or a network.
 A Catmandu::FileStore contains one or more Catmandu::FileBag
 which is a kind of folder.
 .
 Each Catmandu::FileBag contains one or more files.
 .
 One special Catmandu::FileBag is the index
 which contains the listing of all Catmandu::FileBag
 in the Catmandu::FileStore.
 .
 Catmandu provides a suite of Perl modules
 to ease the import, storage, retrieval, export
 and transformation of metadata records.