Updated for 2021-22 season

Updated so that the stats are correctly calculated for the upcoming season.

Version 0.1.0

This release contains the following features and bug fixes:
#13 Add columns for non-cumulative future expected points
#15 Add data testing framework
#16 At the beginning of the season, estimated goal stats may be slightly incorrect
#18 Some column values are not populated correctly in player_gw_next_eps_ext when player does not have fixture in next game week
#20 Expected points columns for future game weeks are incorrect in player_gw_next_eps_ext and players_gw_team_eps_ex

Initial release

This is the first step. Even better things are on the way 😄