#4 minimum plus doesn't take race into account

[Mike Knowles]

Half orcs racially have a net -2 to their stats, so if they
are already bumping up against the minimum stats, they
may end up under the minimum once the stats are
adjusted for race.

[Mike Knowles]

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This won't be fixed until the race generation and stat
generation are in their own classes (783253, already being
worked) since it'll be a straightforward fix there while working
on the classes instead of fixing it and then rewriting that
code again when it moves to the class.