Initial commit of Go Fish work to date
adding some missing files
Merge branch 'master' of https://github.com/gltarsa/Go-Fish with local repo
code now builds cards from string
playing_cards_from_string now new_playing_cards_from_string
implemented search + delete for cards and books
Added hand-stacking test. Re-factored to better follow naming conventions.
Code is passing tests.  Need to test typical play paths.