hc_eq.score_for_round should not return a tuple

[jatkinson1000]

Currently hc_eq.score_for_round returns a tuple of the score for the round and the score for each distance.
This is not an intuitive use, however.

Need a function hc_eq.score_for_round that returns just a score.
Need a new function hc_eq.score_for_round_distances that returns an array.

Need to rectify this soon as it will have a lot of knock on effects elsewhere such as classifications and generating handicap tables.