This adds the same functionality already supported by the prom_rel
tags to support reserve team promotion rules for promotion games.
This allows you to specify a larger range of teams to promte than
the number of teams defined with the number_of_teams tag, so that
if a team is ineligible for promotion than other teams can be
substituted. For example, if you wanted to promote at most 2
of the top 3 teams, you could do:
<prom_games>
<prom_games_number_of_advance>2</prom_games_number_of_advance>
<rank_start>1</rank_start>
<rank_end>3</rank_end>
</prom_games>
Note that the rank_start and rank_end tags are not supported when using
the prom_games_loser_sid tag.
This tag is intended to be used for leagues that may have some teams in
the league that are ineligible for promotions (e.g. reserve teams).
Often these leagues will promote 2 of the top 3 teams or something
similar, so if one team is ineligible, the league would still be able
to promote 2 teams. Below is an example of how to model this scenario
with the new tag:
<prom_rel_element>
<rank_start>1</rank_start>
<rank_end>3</rank_end>
<number_of_teams>2</number_of_teams>
</prom_rel_element>