Database additions plus restructuring

moved utility functions (the two scrapers) to utils.py file, added
models file, beginnings of management file that can load scores from
command line
Added game adding script

management command finds all the games from the NBC live feed. If the
game, or teams in the game, are not found, then they are created. If
the game does not already exist, it is also created.

Next step is to extend this functionality to Mikey's game finding
script.

Final step would be to add scores to those games.
finalized load_games.py

finalized the saving and loading of current games, added comments.
added test view for boxscore parsing