Finished creating workflow views.
Now the game_flow ca return the list of games per skill level, with a
boolean attribute that shows if that game is enabled or not,
depending on game_flow rules.

Created two types of rules: finished game and partial completion game dependencies.

Test cases for enabled and disabled games were created.

This game list is returned from the gameflow view which needs to be authenticated.
A login page, copied from admin site, was created for login a user.
changed template directory configuration