Modules
Read/Write file handles that are stored as seperate, size-limited files on disk
Role for findings (TODO: generating) chunk file names.
Chunk files stored in $X.chunk where $X is an eight "digit" hex number.
Chunk files stored as plain integers.
Wrap a callback iterator to allow variable look-ahead.
Provide getline() interface to a file chunk directory.
Provide line-based chunk file writing as a file-handle-like object.