ArenaClient run report endpoint

[lladdy]

Currently if an ArenaClient encounters an error during a match, it submits a match result of ERROR type.

This means that match has a result and will not be replayed.

Ideally this shouldn't be the case - each match should run to conclusion in SC2 (win, lose, tie), even if it takes multiple attempts.

For this purpose, I suggest the creation of a "run report" endpoint, where an AC can report on each match run attempt, instead of the match result serving this purpose.