Add a max score

[IncPlusPlus]

Otherwise, the scores shown have little context. CTF is out of 5, attrition is out of 650, etc.

If I can't find a place in memory where these values can be reliably referenced, I might just have to default to the values that the gamemodes have. This value will be wrong if a private match modifies them. If there's a way to detect whether the user is in a private match, maybe I could disable these.