Lazily reads lines from a file and returns them in a Stream. Be sure to use this in a with-open
or use reduce/transducers to close the file.
;; just read first line
(with-open [lines (file/lines path)]
(first (stream/stream-seq lines)))
;; just read first character of each line
(into  (map first) (file/lines path))
:encoding string name of charset (as supported by Charset/forName) (default "UTF-8")