implement client class which initializes with a steam key to use the api. Also implement methods to get users games and ban history, tests are passing.
add cases where the user entered in an invalid id, it will not break. will now pass back hash containing an appropriate error
refactor code to store all api urls in a module.
add tests for urls module (friend_list and player_bans)
add more documentation for each module and class
add tests for get_player_summaries, and implemented method in order to call that part of the API