Scrambles Matcher: Allow organizers to mark the number of scrambles used in MBLD, and mark the others as extra

[dunkOnIT]

Currently, the delegate specifies the number which were used when submitting results, and WRT manually removes them as part of the posting process.

I'm not too privy to the implementation here, but my first thought is to split the MBLD scramble set into a "used" and "unused" set/ truncate the scrambles present in the MBLD set and add the unused ones to a scramble set that gets put in the "extra" section - with the option for the user to change the number of scrambles used in the set