Adjust relax mod multiplayer to 0.5x
Adjust relax mod multiplayer to 0.5x

Has previously been discussed internally. Probably good to get this out
before the next full reprocess of scores server-side.

The multiplier here was @smoogipoo's suggested value. I'd be willing to
go lower if this is seen at too high, but it should be a round number to
make it easy for users to understand the max score available to them.

peppy/osu,peppy/osu,ppy/osu,ppy/osu,peppy/osu,ppy/osu